The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1290-1 advisory.

    - CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
    - CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
    - CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
    - CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tenable Identity Exposure running on the remote host is prior to 3.93.5. It is, therefore, affected by multiple vulnerabilities according to advisory TNS-2026-16:

  - Tenable Identity Exposure contains multiple unauthenticated API endpoints under /w/api/* that expose     sensitive application configuration data including cleartext LDAP credentials, SAML configuration, user     accounts, and directory settings to unauthenticated remote attackers. Affected responses are served with     Cache-Control: public headers and without Vary: Cookie, allowing reverse proxies and CDNs to cache and     serve sensitive data to unauthenticated users even after authentication is applied. (CVE-2026-13007)

  - Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows     an authorized attacker to bypass a security feature over a network. (CVE-2025-55315)

  - Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap buffer     overflow on 32 bit platforms. A heap buffer overflow may lead to a crash or possibly an attacker     controlled code execution or other undefined behavior. (CVE-2026-31789)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of OpenSSL installed on the remote host is prior to 3.4.5. It is, therefore, affected by multiple vulnerabilities as referenced in the 3.4.5 advisory.

  - Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap     buffer overflow on 32 bit platforms.  Impact summary: A heap buffer overflow may lead to a crash or     possibly an attacker controlled code execution or other undefined behavior.  If an attacker can supply a     crafted X.509 certificate with an excessively large OCTET STRING value in extensions such as the Subject     Key Identifier (SKID) or Authority Key Identifier (AKID) which are being converted to hex, the size of the     buffer needed for the result is calculated as multiplication of the input length by 3. On 32 bit     platforms, this multiplication may overflow resulting in the allocation of a smaller buffer and a heap     buffer overflow.  Applications and services that print or log contents of untrusted X.509 certificates are     vulnerable to this issue. As the certificates would have to have sizes of over 1 Gigabyte, printing or     logging such certificates is a fairly unlikely operation and only 32 bit platforms are affected, this     issue was assigned Low severity.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this     issue, as the affected code is outside the OpenSSL FIPS module boundary. Fixed in OpenSSL 3.0.20 (Affected     since 3.0.0). (CVE-2026-31789)

  - Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send     contents of an uninitialized memory buffer to a malicious peer.  Impact summary: The uninitialized buffer     might contain sensitive data from the previous execution of the application process which leads to     sensitive data leakage to an attacker.  RSA_public_encrypt() returns the number of bytes written on     success and -1 on error. The affected code tests only whether the return value is non-zero. As a result,     if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and     leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been     produced.  If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA     public key without first validating that key, then this may cause stale or uninitialized contents of the     caller-provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext.  As a     workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate()     will mitigate the issue.  The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.
    Fixed in OpenSSL 3.0.20 (Affected since 3.0.0). (CVE-2026-31790)

  - Issue summary: During processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo a     NULL pointer dereference can happen.  Impact summary: Applications that process attacker-controlled CMS     data may crash before authentication or cryptographic operations occur resulting in Denial of Service.
    When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with RSA-OAEP encryption is     processed, the optional parameters field of RSA-OAEP SourceFunc algorithm identifier is examined without     checking for its presence. This results in a NULL pointer dereference if the field is missing.
    Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based     protocols) are vulnerable.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,     as the affected code is outside the OpenSSL FIPS module boundary. Fixed in OpenSSL 1.1.1zg (Affected since     1.1.1). (CVE-2026-28390)

  - Issue summary: During processing of a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo a NULL     pointer dereference can happen.  Impact summary: Applications that process attacker-controlled CMS data     may crash before authentication or cryptographic operations occur resulting in Denial of Service.  When a     CMS EnvelopedData message that uses KeyAgreeRecipientInfo is processed, the optional parameters field of     KeyEncryptionAlgorithmIdentifier is examined without checking for its presence. This results in a NULL     pointer dereference if the field is missing.  Applications and services that call CMS_decrypt() on     untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable.  The FIPS modules in 3.6,     3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS     module boundary. Fixed in OpenSSL 1.1.1zg (Affected since 1.1.1). (CVE-2026-28389)

  - Issue summary: When a delta CRL that contains a Delta CRL Indicator extension is processed a NULL pointer     dereference might happen if the required CRL Number extension is missing.  Impact summary: A NULL pointer     dereference can trigger a crash which leads to a Denial of Service for an application.  When CRL     processing and delta CRL processing is enabled during X.509 certificate verification, the delta CRL     processing does not check whether the CRL Number extension is NULL before dereferencing it. When a     malformed delta CRL file is being processed, this parameter can be NULL, causing a NULL pointer     dereference.  Exploiting this issue requires the X509_V_FLAG_USE_DELTAS flag to be enabled in the     verification context, the certificate being verified to contain a freshestCRL extension or the base CRL to     have the EXFLAG_FRESHEST flag set, and an attacker to provide a malformed CRL to an application that     processes it.  The vulnerability is limited to Denial of Service and cannot be escalated to achieve code     execution or memory disclosure. For that reason the issue was assessed as Low severity according to our     Security Policy.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the     affected code is outside the OpenSSL FIPS module boundary. Fixed in OpenSSL 1.1.1zg (Affected since     1.1.1). (CVE-2026-28388)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the c7a52cee-32ab-11f1-9839-8447094a420f advisory.

    The OpenSSL project reports:
    Seven vulnerabilities in OpenSSL library. Highest classification Moderate.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1256-1 advisory.

    - CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
    - CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
    - CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
    - CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).
    - CVE-2026-31790: Incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the openssl package has been released.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1257-1 advisory.

    - CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
    - CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
    - CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
    - CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).
    - CVE-2026-31790: Incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6201 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6201-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     April 07, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : openssl     CVE ID         : CVE-2026-2673 CVE-2026-28387 CVE-2026-28388 CVE-2026-28389                      CVE-2026-28390 CVE-2026-31789 CVE-2026-31790     Debian Bug     : 1130650

    Multiple vulnerabilities have been discovered in OpenSSL, a Secure     Sockets Layer toolkit, which may result in denial of service,     information leaks, or potentially remote code execution.

    Additional details can be found in the upstream advisory:
    https://openssl-library.org/news/secadv/20260407.txt

    For the oldstable distribution (bookworm), these problems have been fixed     in version 3.0.19-1~deb12u2.

    For the stable distribution (trixie), these problems have been fixed in     version 3.5.5-1~deb13u2.

    We recommend that you upgrade your openssl packages.

    For the detailed security status of openssl please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/openssl

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1213-1 advisory.

    - CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
    - CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
    - CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
    - CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).
    - CVE-2026-31790: Incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap     buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or     possibly an attacker controlled code execution or other undefined behavior. If an attacker can supply a     crafted X.509 certificate with an excessively large OCTET STRING value in extensions such as the Subject     Key Identifier (SKID) or Authority Key Identifier (AKID) which are being converted to hex, the size of the     buffer needed for the result is calculated as multiplication of the input length by 3. On 32 bit     platforms, this multiplication may overflow resulting in the allocation of a smaller buffer and a heap     buffer overflow. Applications and services that print or log contents of untrusted X.509 certificates are     vulnerable to this issue. As the certificates would have to have sizes of over 1 Gigabyte, printing or     logging such certificates is a fairly unlikely operation and only 32 bit platforms are affected, this     issue was assigned Low severity. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this     issue, as the affected code is outside the OpenSSL FIPS module boundary. (CVE-2026-31789)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of OpenSSL installed on the remote host is prior to 3.3.7. It is, therefore, affected by multiple vulnerabilities as referenced in the 3.3.7 advisory.

  - Issue summary: Converting an excessively large OCTET STRING value to a hexadecimal string leads to a heap     buffer overflow on 32 bit platforms.  Impact summary: A heap buffer overflow may lead to a crash or     possibly an attacker controlled code execution or other undefined behavior.  If an attacker can supply a     crafted X.509 certificate with an excessively large OCTET STRING value in extensions such as the Subject     Key Identifier (SKID) or Authority Key Identifier (AKID) which are being converted to hex, the size of the     buffer needed for the result is calculated as multiplication of the input length by 3. On 32 bit     platforms, this multiplication may overflow resulting in the allocation of a smaller buffer and a heap     buffer overflow.  Applications and services that print or log contents of untrusted X.509 certificates are     vulnerable to this issue. As the certificates would have to have sizes of over 1 Gigabyte, printing or     logging such certificates is a fairly unlikely operation and only 32 bit platforms are affected, this     issue was assigned Low severity.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this     issue, as the affected code is outside the OpenSSL FIPS module boundary. Fixed in OpenSSL 3.0.20 (Affected     since 3.0.0). (CVE-2026-31789)

  - Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send     contents of an uninitialized memory buffer to a malicious peer.  Impact summary: The uninitialized buffer     might contain sensitive data from the previous execution of the application process which leads to     sensitive data leakage to an attacker.  RSA_public_encrypt() returns the number of bytes written on     success and -1 on error. The affected code tests only whether the return value is non-zero. As a result,     if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and     leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been     produced.  If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA     public key without first validating that key, then this may cause stale or uninitialized contents of the     caller-provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext.  As a     workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate()     will mitigate the issue.  The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.
    Fixed in OpenSSL 3.0.20 (Affected since 3.0.0). (CVE-2026-31790)

  - Issue summary: During processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo a     NULL pointer dereference can happen.  Impact summary: Applications that process attacker-controlled CMS     data may crash before authentication or cryptographic operations occur resulting in Denial of Service.
    When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with RSA-OAEP encryption is     processed, the optional parameters field of RSA-OAEP SourceFunc algorithm identifier is examined without     checking for its presence. This results in a NULL pointer dereference if the field is missing.
    Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based     protocols) are vulnerable.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,     as the affected code is outside the OpenSSL FIPS module boundary. Fixed in OpenSSL 1.1.1zg (Affected since     1.1.1). (CVE-2026-28390)

  - Issue summary: During processing of a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo a NULL     pointer dereference can happen.  Impact summary: Applications that process attacker-controlled CMS data     may crash before authentication or cryptographic operations occur resulting in Denial of Service.  When a     CMS EnvelopedData message that uses KeyAgreeRecipientInfo is processed, the optional parameters field of     KeyEncryptionAlgorithmIdentifier is examined without checking for its presence. This results in a NULL     pointer dereference if the field is missing.  Applications and services that call CMS_decrypt() on     untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable.  The FIPS modules in 3.6,     3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS     module boundary. Fixed in OpenSSL 1.1.1zg (Affected since 1.1.1). (CVE-2026-28389)

  - Issue summary: When a delta CRL that contains a Delta CRL Indicator extension is processed a NULL pointer     dereference might happen if the required CRL Number extension is missing.  Impact summary: A NULL pointer     dereference can trigger a crash which leads to a Denial of Service for an application.  When CRL     processing and delta CRL processing is enabled during X.509 certificate verification, the delta CRL     processing does not check whether the CRL Number extension is NULL before dereferencing it. When a     malformed delta CRL file is being processed, this parameter can be NULL, causing a NULL pointer     dereference.  Exploiting this issue requires the X509_V_FLAG_USE_DELTAS flag to be enabled in the     verification context, the certificate being verified to contain a freshestCRL extension or the base CRL to     have the EXFLAG_FRESHEST flag set, and an attacker to provide a malformed CRL to an application that     processes it.  The vulnerability is limited to Denial of Service and cannot be escalated to achieve code     execution or memory disclosure. For that reason the issue was assessed as Low severity according to our     Security Policy.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the     affected code is outside the OpenSSL FIPS module boundary. Fixed in OpenSSL 1.1.1zg (Affected since     1.1.1). (CVE-2026-28388)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1375-1 advisory.

    Security issues fixed:

    - CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
    - CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
    - CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
    - CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).
    - CVE-2026-31790: Incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).
    - CVE-2026-28390: NULL pointer dereference during processing of a crafted CMS EnvelopedData message with       KeyTransportRecipientInfo (bsc#1261678).

    Other updates and bugfixes:

    - Enable MD2 in legacy provider (jsc#PED-15724).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1577-1 advisory.

    - CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
    - CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
    - CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
    - CVE-2026-28390: NULL pointer dereference during processing of a crafted CMS EnvelopedData message with       KeyTransportRecipientInfo (bsc#1261678).
    - CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    Issue summary: Applications using RSASVE key encapsulation to establish_x000D_     a secret encryption key can send contents of an uninitialized memory buffer to_x000D_     a malicious peer._x000D_
    _x000D_     Impact summary: The uninitialized buffer might contain sensitive data from the_x000D_     previous execution of the application process which leads to sensitive data_x000D_     leakage to an attacker._x000D_
    _x000D_     RSA_public_encrypt() returns the number of bytes written on success and -1_x000D_     on error. The affected code tests only whether the return value is non-zero._x000D_     As a result, if RSA encryption fails, encapsulation can still return success to_x000D_     the caller, set the output lengths, and leave the caller to use the contents of_x000D_     the ciphertext buffer as if a valid KEM ciphertext had been produced._x000D_
    _x000D_     If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an_x000D_     attacker-supplied invalid RSA public key without first validating that key,_x000D_     then this may cause stale or uninitialized contents of the caller-provided_x000D_     ciphertext buffer to be disclosed to the attacker in place of the KEM_x000D_     ciphertext._x000D_
    _x000D_     As a workaround calling EVP_PKEY_public_check() or_x000D_     EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will mitigate_x000D_     the issue._x000D_
    _x000D_     The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.(CVE-2026-31790)

    Issue summary: An uncommon configuration of clients performing DANE TLSA-based_x000D_     server authentication, when paired with uncommon server DANE TLSA records, may_x000D_     result in a use-after-free and/or double-free on the client side._x000D_
    _x000D_     Impact summary: A use after free can have a range of potential consequences_x000D_     such as the corruption of valid data, crashes or execution of arbitrary code._x000D_
    _x000D_     However, the issue only affects clients that make use of TLSA records with both_x000D_     the PKIX-TA(0/PKIX-EE(1) certificate usages and the DANE-TA(2) certificate_x000D_     usage._x000D_
    _x000D_     By far the most common deployment of DANE is in SMTP MTAs for which RFC7672_x000D_     recommends that clients treat as 'unusable' any TLSA records that have the PKIX_x000D_     certificate usages.  These SMTP (or other similar) clients are not vulnerable_x000D_     to this issue.  Conversely, any clients that support only the PKIX usages, and_x000D_     ignore the DANE-TA(2) usage are also not vulnerable._x000D_
    _x000D_     The client would also need to be communicating with a server that publishes a_x000D_     TLSA RRset with both types of TLSA records._x000D_
    _x000D_     No FIPS modules are affected by this issue, the problem code is outside the_x000D_     FIPS module boundary.(CVE-2026-28387)

    Issue summary: When a delta CRL that contains a Delta CRL Indicator extension_x000D_     is processed a NULL pointer dereference might happen if the required CRL_x000D_     Number extension is missing._x000D_
    _x000D_     Impact summary: A NULL pointer dereference can trigger a crash which_x000D_     leads to a Denial of Service for an application._x000D_
    _x000D_     When CRL processing and delta CRL processing is enabled during X.509_x000D_     certificate verification, the delta CRL processing does not check_x000D_     whether the CRL Number extension is NULL before dereferencing it._x000D_     When a malformed delta CRL file is being processed, this parameter_x000D_     can be NULL, causing a NULL pointer dereference._x000D_
    _x000D_     Exploiting this issue requires the X509_V_FLAG_USE_DELTAS flag to be enabled in_x000D_     the verification context, the certificate being verified to contain a_x000D_     freshestCRL extension or the base CRL to have the EXFLAG_FRESHEST flag set, and_x000D_     an attacker to provide a malformed CRL to an application that processes it._x000D_
    _x000D_     The vulnerability is limited to Denial of Service and cannot be escalated to_x000D_     achieve code execution or memory disclosure. For that reason the issue was_x000D_     assessed as Low severity according to our Security Policy._x000D_
    _x000D_     The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,_x000D_     as the affected code is outside the OpenSSL FIPS module boundary.(CVE-2026-28388)

    Issue summary: Converting an excessively large OCTET STRING value to_x000D_     a hexadecimal string leads to a heap buffer overflow on 32 bit platforms._x000D_
    _x000D_     Impact summary: A heap buffer overflow may lead to a crash or possibly_x000D_     an attacker controlled code execution or other undefined behavior._x000D_
    _x000D_     If an attacker can supply a crafted X.509 certificate with an excessively_x000D_     large OCTET STRING value in extensions such as the Subject Key Identifier_x000D_     (SKID) or Authority Key Identifier (AKID) which are being converted to hex,_x000D_     the size of the buffer needed for the result is calculated as multiplication_x000D_     of the input length by 3. On 32 bit platforms, this multiplication may overflow_x000D_     resulting in the allocation of a smaller buffer and a heap buffer overflow._x000D_
    _x000D_     Applications and services that print or log contents of untrusted X.509_x000D_     certificates are vulnerable to this issue. As the certificates would have_x000D_     to have sizes of over 1 Gigabyte, printing or logging such certificates_x000D_     is a fairly unlikely operation and only 32 bit platforms are affected,_x000D_     this issue was assigned Low severity._x000D_
    _x000D_     The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this_x000D_     issue, as the affected code is outside the OpenSSL FIPS module boundary.(CVE-2026-31789)

    Issue summary: During processing of a crafted CMS EnvelopedData message_x000D_     with KeyAgreeRecipientInfo a NULL pointer dereference can happen._x000D_
    _x000D_     Impact summary: Applications that process attacker-controlled CMS data may_x000D_     crash before authentication or cryptographic operations occur resulting in_x000D_     Denial of Service._x000D_
    _x000D_     When a CMS EnvelopedData message that uses KeyAgreeRecipientInfo is_x000D_     processed, the optional parameters field of KeyEncryptionAlgorithmIdentifier_x000D_     is examined without checking for its presence. This results in a NULL_x000D_     pointer dereference if the field is missing._x000D_
    _x000D_     Applications and services that call CMS_decrypt() on untrusted input_x000D_     (e.g., S/MIME processing or CMS-based protocols) are vulnerable._x000D_
    _x000D_     The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this_x000D_     issue, as the affected code is outside the OpenSSL FIPS module boundary.(CVE-2026-28389)

    Issue summary: During processing of a crafted CMS EnvelopedData message_x000D_     with KeyTransportRecipientInfo a NULL pointer dereference can happen._x000D_
    _x000D_     Impact summary: Applications that process attacker-controlled CMS data may_x000D_     crash before authentication or cryptographic operations occur resulting in_x000D_     Denial of Service._x000D_
    _x000D_     When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with_x000D_     RSA-OAEP encryption is processed, the optional parameters field of_x000D_     RSA-OAEP SourceFunc algorithm identifier is examined without checking_x000D_     for its presence. This results in a NULL pointer dereference if the field_x000D_     is missing._x000D_
    _x000D_     Applications and services that call CMS_decrypt() on untrusted input_x000D_     (e.g., S/MIME processing or CMS-based protocols) are vulnerable._x000D_
    _x000D_     The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this_x000D_     issue, as the affected code is outside the OpenSSL FIPS module boundary.(CVE-2026-28390)

Tenable has extracted the preceding description block directly from the EulerOS openssl security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
306331	SUSE SLES15 Security Update : openssl-1_1 (SUSE-SU-2026:1290-1)	Nessus	SuSE Local Security Checks	2026/4/14	2026/5/5	critical
322483	Tenable Identity Exposure < 3.93.5 Multiple Vulnerabilities (TNS-2026-16)	Nessus	Misc.	2026/6/24	2026/6/25	high
305201	OpenSSL 3.4.0 < 3.4.5 Multiple Vulnerabilities	Nessus	Web Servers	2026/4/7	2026/4/27	critical
305290	FreeBSD : OpenSSL -- Multiple vulnerabilities (c7a52cee-32ab-11f1-9839-8447094a420f)	Nessus	FreeBSD Local Security Checks	2026/4/8	2026/5/19	high
306003	SUSE SLES12: libopenssl-1_0_0-devel / libopenssl-1_0_0-devel-32bit / etc (SUSE-SU-2026:1256-1)	Nessus	SuSE Local Security Checks	2026/4/11	2026/6/26	critical
306004	Photon OS 5.0: Openssl PHSA-2026-5.0-0810	Nessus	PhotonOS Local Security Checks	2026/4/11	2026/4/27	critical
306012	SUSE SLES15: libopenssl-1_1-devel / libopenssl-1_1-devel-32bit / libopenssl1_1 / etc (SUSE-SU-2026:1257-1)	Nessus	SuSE Local Security Checks	2026/4/11	2026/6/26	critical
307675	Debian dsa-6201 : libcrypto3-udeb - security update	Nessus	Debian Local Security Checks	2026/4/21	2026/4/27	critical
305682	SUSE SLES15 Security Update : openssl-3 (SUSE-SU-2026:1213-1)	Nessus	SuSE Local Security Checks	2026/4/9	2026/4/27	critical
305216	Linux Distros Unpatched Vulnerability : CVE-2026-31789	Nessus	Misc.	2026/4/7	2026/7/27	critical
305200	OpenSSL 3.3.0 < 3.3.7 Multiple Vulnerabilities	Nessus	Web Servers	2026/4/7	2026/4/27	critical
306876	SUSE SLED15 / SLES15 Security Update : openssl-3 (SUSE-SU-2026:1375-1)	Nessus	SuSE Local Security Checks	2026/4/17	2026/4/27	critical
310064	SUSE SLES15 Security Update : openssl-1_1 (SUSE-SU-2026:1577-1)	Nessus	SuSE Local Security Checks	2026/4/24	2026/4/24	critical
323177	EulerOS 2.0 SP15 : openssl (EulerOS-SA-2026-2456)	Nessus	Huawei Local Security Checks	2026/6/27	2026/6/27	critical

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