The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:4259 advisory.

    XML-RPC is a remote procedure call (RPC) protocol that uses XML to encode its calls and HTTP as a     transport mechanism. The xmlrpc-c packages provide a network protocol to allow a client program to make a     simple RPC (remote procedure call) over the Internet. It converts an RPC into an XML document, sends it to     a remote server using HTTP, and gets back the response in XML.

    Security Fix(es):

    * expat: parsing large tokens can trigger a denial of service (CVE-2023-52425)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

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

    libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are     required in the case of a large token for which multiple buffer fills are needed.(CVE-2023-52425)

    libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external     parsers (created via XML_ExternalEntityParserCreate).(CVE-2024-28757)

Tenable has extracted the preceding description block directly from the EulerOS expat 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 versions of HTTP Server installed on the remote host are affected by multiple vulnerabilities as referenced in the July 2024 CPU advisory:

  - Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: SSL Module (zlib)). The     supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker     with network access via HTTPS to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result     in takeover of Oracle HTTP Server. (CVE-2023-45853)

  - Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: SSL Module (LibExpat)). The     supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker     with network access via HTTPS to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result     in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle HTTP Server.
    (CVE-2023-52425)

  - Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: SSL Module (libxml2)). The     supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker     with network access via HTTPS to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result     in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle HTTP Server.
    (CVE-2024-25062)

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 expat package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external     parsers (created via XML_ExternalEntityParserCreate).(CVE-2024-28757)

    libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are     required in the case of a large token for which multiple buffer fills are needed.(CVE-2023-52425)

Tenable has extracted the preceding description block directly from the EulerOS expat 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 expat package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are     required in the case of a large token for which multiple buffer fills are needed.(CVE-2023-52425)

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

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

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3893 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3893-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     September 19, 2024                            https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : expat     Version        : 2.2.10-2+deb11u6     CVE ID         : CVE-2023-52425 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492     Debian Bug     : 1063238 1080149 1080150 1080152

    Multiple vulnerabilities were found in expat, an XML parsing C library,     which could lead to Denial of Service, memory corruption or arbitrary     code execution.

    CVE-2023-52425

        Snild Dolkow discovered that when parsing a large token that         requires multiple buffer fills to complete, expat has to re-parse         the token from start multiple times, which could lead to Denial of         Service via resource exhaustion.

    CVE-2024-45490

        TaiYou discovered that xmlparse.c does not reject a negative length         for XML_ParseBuffer(), which may cause memory corruption or code         execution.

    CVE-2024-45491

        TaiYou discovered that xmlparse.c has an integer overflow for         `nDefaultAtts` on 32-bit platforms, which may cause denial of         service or code execution.

    CVE-2024-45492

        TaiYou discovered that xmlparse.c has an integer overflow for         `m_groupSize` on 32-bit platforms, which may cause denial of service         or code execution.

    For Debian 11 bullseye, these problems have been fixed in version     2.2.10-2+deb11u6.

    We recommend that you upgrade your expat packages.

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

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-759 advisory.

    libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are     required in the case of a large token for which multiple buffer fills are needed.

    Considering the tradeoff between the stability of Amazon Linux and the impact of CVE-2023-52425 a fix will     not be provided for firefox and thunderbird in Amazon Linux 2 at this time. (CVE-2023-52425)

    An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for     XML_ParseBuffer. (CVE-2024-45490)

Tenable has extracted the preceding description block directly from the tested product 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-2026:4623-1 advisory.

    - CVE-2025-59375: denial of service (resource consumption) caused by processing malformed small documents     (bsc#1249584).
    - CVE-2026-24515: NULL dereference (CWE-476) due to function XML_ExternalEntityParserCreate() failing to     copy the       encoding handler data passed to XML_SetUnknownEncodingHandler() from the parent to the subparser     (bsc#1257144).
    - CVE-2026-25210: lack of buffer size check can lead to an integer overflow (bsc#1257496).
    - CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an     entity       declaration value (bsc#1259726).
    - CVE-2026-32777: denial of service due to infinite loop in DTD content parsing (bsc#1259711).
    - CVE-2026-32778: NULL pointer dereference in `setContext` on retry after an out-of-memory condition       (bsc#1259729).
    - CVE-2026-41080: crafted XML document can cause a denial of service (bsc#1262263).
    - CVE-2026-45186: denial of service via moderately sized crafted XML input (bsc#1264713).
    - CVE-2026-50219: lack of handler call depth tracking for calls to XML_* functions from within handlers in     cases of a       policy violation (bsc#1267631).
    - CVE-2026-56131: lack of handler call depth tracking for calls to XML_ResumeParser from within       handlers in cases of a policy violation (bsc#1268572).
    - CVE-2026-56132: heap-based buffer overflow in doProlog in xmlparse.c (bsc#1268573).
    - CVE-2026-56403,CVE-2026-56404,CVE-2026-56405,CVE-2026-56406,       CVE-2026-56407,CVE-2026-56408,CVE-2026-56409,CVE-2026-56410,       CVE-2026-56411,CVE-2026-56412: multiple integer overflow vulnerabilities (bsc#1275115).
    - CVE-2026-66046: denial of service vulnerability caused by quadratic algorithmic complexity in the     storeAtts()       function (bsc#1275732).
    - CVE-2026-72522: out-of-bounds read and resultant infinite loop due to low surrogates being treated the     same       as high surrogates during Unicode processing (bsc#1275594).
    - CVE-2026-76641: out-of-bounds read vulnerability that allows attackers to trigger       memory corruption (bsc#1275915).
    - CVE-2026-76956: denial of service via hash flooding attacks (bsc#1275860).
    - CVE-2026-76957: lack of handler call depth tracking with custom encoding callbacks. Thus, a use-       after-free can occur (bsc#1275859).
    - CVE-2026-77214: out-of-bounds read due to insufficient checks in `XML_ParseBuffer()` (bsc#1284334).
    - CVE-2026-93990: fails to validate low surrogates following high surrogates in UTF-16 input     (bsc#1282347).
    - CVE-2026-102633: Denial of Service via integer overflow in expat_realloc (bsc#1283493).

    Update to 2.8.5 (jsc#PED-16154):

     * Bug fixes:
     * Fix an OOM-related memory leak on a failed overflow check
     * Fix memory alignment for architectures with 128bit pointers
     * Mark XML_SetHashSalt deprecated
     * CMake: only add /source-charset:utf-8 when /utf-8 is not present
     * lib: resolve undefined behavior from overshifting a signed int
     * lib: support read-only hash table lookup with non-zero-terminated      keys
     * lib: use a C99 bool for ENTITY.open
     * version info bumped from 13:3:12 to 13:4:12
     * fix support for 2+ GiB documents (regression from 2.8.2)
     * reject empty version in the XML declaration
     * fix printf format for AIX
     * CMake|AIX: enable EXPAT_DEV_URANDOM by default
     * version info bumped from 13:2:12 to 13:3:12
     * Existing API function XML_SetHashSalt is now deprecated
     * because of its limitations, and its use should be
     * considered a vulnerability. Please either use the new API
     * function XML_SetHashSalt16Bytes (with known-high-quality
     * entropy input only!) instead, or leave the derivation of
     * a 16-bytes hash salt from high quality entropy to Expat's
     * internal machinery (by *not* calling either of the two
     * XML_SetHashSalt* functions).
     * xmlwf: Fix a memory leak
     * WASI: Fix format specifiers for 32bit WASI SDK
     * Fix alignment of internal allocations for some non-amd64      architectures (e.g. sparc32); fixes up on the fix to      CVE-2025-59375 (of Expat 2.7.2)
     * Fix a class of false positives where input should have been      rejected with error XML_ERROR_ASYNC_ENTITY; regression from      CVE-2024-8176 (of Expat 2.7.0)
     * Prove and regression-proof absence of integer overflow      from function expat_realloc
     * Remove 'harmless' cast that truncated a size_t to unsigned
     * xmlwf: Resolve use of functions XML_GetErrorLineNumber      and XML_GetErrorColumnNumber
     * CVE-2025-59375 -- Disallow use of disproportional amounts of      dynamic memory from within an Expat parser
     * xmlwf: Fix (internal) help generator
     * xmlwf: Mention supported environment variables in

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 SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4615-1 advisory.

    - CVE-2025-59375: denial of service (resource consumption) caused by processing malformed small documents     (bsc#1249584).
    - CVE-2026-24515: NULL dereference (CWE-476) due to function XML_ExternalEntityParserCreate() failing to     copy the       encoding handler data passed to XML_SetUnknownEncodingHandler() from the parent to the subparser     (bsc#1257144).
    - CVE-2026-25210: lack of buffer size check can lead to an integer overflow (bsc#1257496).
    - CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an     entity       declaration value (bsc#1259726).
    - CVE-2026-32777: denial of service due to infinite loop in DTD content parsing (bsc#1259711).
    - CVE-2026-32778: NULL pointer dereference in `setContext` on retry after an out-of-memory condition       (bsc#1259729).
    - CVE-2026-41080: crafted XML document can cause a denial of service (bsc#1262263).
    - CVE-2026-45186: denial of service via moderately sized crafted XML input (bsc#1264713).
    - CVE-2026-50219: lack of handler call depth tracking for calls to XML_* functions from within handlers in     cases of a       policy violation (bsc#1267631).
    - CVE-2026-56131: lack of handler call depth tracking for calls to XML_ResumeParser from within       handlers in cases of a policy violation (bsc#1268572).
    - CVE-2026-56132: heap-based buffer overflow in doProlog in xmlparse.c (bsc#1268573).
    - CVE-2026-56403,CVE-2026-56404,CVE-2026-56405,CVE-2026-56406,       CVE-2026-56407,CVE-2026-56408,CVE-2026-56409,CVE-2026-56410,       CVE-2026-56411,CVE-2026-56412: multiple integer overflow vulnerabilities (bsc#1275115).
    - CVE-2026-66046: denial of service vulnerability caused by quadratic algorithmic complexity in the     storeAtts()       function (bsc#1275732).
    - CVE-2026-72522: out-of-bounds read and resultant infinite loop due to low surrogates being treated the     same       as high surrogates during Unicode processing (bsc#1275594).
    - CVE-2026-76641: out-of-bounds read vulnerability that allows attackers to trigger       memory corruption (bsc#1275915).
    - CVE-2026-76956: denial of service via hash flooding attacks (bsc#1275860).
    - CVE-2026-76957: lack of handler call depth tracking with custom encoding callbacks. Thus, a use-       after-free can occur (bsc#1275859).
    - CVE-2026-77214: out-of-bounds read due to insufficient checks in `XML_ParseBuffer()` (bsc#1284334).
    - CVE-2026-93990: fails to validate low surrogates following high surrogates in UTF-16 input     (bsc#1282347).
    - CVE-2026-102633: Denial of Service via integer overflow in expat_realloc (bsc#1283493).

    Update to 2.8.5 (jsc#PED-16154):

     * Bug fixes:
     * Fix an OOM-related memory leak on a failed overflow check
     * Fix memory alignment for architectures with 128bit pointers
     * Mark XML_SetHashSalt deprecated
     * CMake: only add /source-charset:utf-8 when /utf-8 is not present
     * lib: resolve undefined behavior from overshifting a signed int
     * lib: support read-only hash table lookup with non-zero-terminated      keys
     * lib: use a C99 bool for ENTITY.open
     * version info bumped from 13:3:12 to 13:4:12
     * fix support for 2+ GiB documents (regression from 2.8.2)
     * reject empty version in the XML declaration
     * fix printf format for AIX
     * CMake|AIX: enable EXPAT_DEV_URANDOM by default
     * version info bumped from 13:2:12 to 13:3:12
     * Existing API function XML_SetHashSalt is now deprecated
     * because of its limitations, and its use should be
     * considered a vulnerability. Please either use the new API
     * function XML_SetHashSalt16Bytes (with known-high-quality
     * entropy input only!) instead, or leave the derivation of
     * a 16-bytes hash salt from high quality entropy to Expat's
     * internal machinery (by *not* calling either of the two
     * XML_SetHashSalt* functions).
     * xmlwf: Fix a memory leak
     * WASI: Fix format specifiers for 32bit WASI SDK
     * Fix alignment of internal allocations for some non-amd64      architectures (e.g. sparc32); fixes up on the fix to      CVE-2025-59375 (of Expat 2.7.2)
     * Fix a class of false positives where input should have been      rejected with error XML_ERROR_ASYNC_ENTITY; regression from      CVE-2024-8176 (of Expat 2.7.0)
     * Prove and regression-proof absence of integer overflow      from function expat_realloc
     * Remove 'harmless' cast that truncated a size_t to unsigned
     * xmlwf: Resolve use of functions XML_GetErrorLineNumber      and XML_GetErrorColumnNumber
     * CVE-2025-59375 -- Disallow use of disproportional amounts of      dynamic memory from within an Expat parser
     * xmlwf: Fix (internal) help generator
     * xmlwf: Mention supported environment variables in

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
201297	RHEL 8 : xmlrpc-c (RHSA-2024:4259)	Nessus	Red Hat Local Security Checks	2024/7/2	2025/4/2	high
202423	EulerOS 2.0 SP10 : expat (EulerOS-SA-2024-1905)	Nessus	Huawei Local Security Checks	2024/7/15	2025/3/19	high
202723	Oracle HTTP Server (July 2024 CPU)	Nessus	Web Servers	2024/7/19	2024/10/18	critical
205913	EulerOS 2.0 SP12 : expat (EulerOS-SA-2024-2235)	Nessus	Huawei Local Security Checks	2024/8/20	2025/3/10	high
207182	EulerOS 2.0 SP9 : expat (EulerOS-SA-2024-2388)	Nessus	Huawei Local Security Checks	2024/9/12	2024/9/12	high
207413	Debian dla-3893 : expat - security update	Nessus	Debian Local Security Checks	2024/9/19	2025/3/21	critical
211371	Amazon Linux 2023 : expat, expat-devel, expat-static (ALAS2023-2024-759)	Nessus	Amazon Linux Local Security Checks	2024/11/14	2025/3/21	high
365317	SUSE SLES15 Security Update : expat (SUSE-SU-2026:4623-1)	Nessus	SuSE Local Security Checks	2026/10/13	2026/10/14	high
365325	SUSE SLES12 Security Update : expat (SUSE-SU-2026:4615-1)	Nessus	SuSE Local Security Checks	2026/10/13	2026/10/14	high

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