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

    A malicious SCP server can send unexpected paths that could make the client application override local     files outside of working directory.This could be misused to create malicious executable or configuration     files and make the user execute them under specific consequences.This is the same issue as in OpenSSH,     tracked as CVE-2019-6111.(CVE-2026-0964)

    A flaw was found in libssh where it can attempt to open arbitrary files during configuration parsing. A     local attacker can exploit this by providing a malicious configuration file or when the system is     misconfigured. This vulnerability could lead to a Denial of Service (DoS) by causing the system to try and     access dangerous files, such as block devices or large system files, which can disrupt normal     operations.(CVE-2026-0965)

    The API function `ssh_get_hexa()` is vulnerable, when 0-lenght input is provided to this function. This     function is used internally in `ssh_get_fingerprint_hash()` and `ssh_print_hexa()` (deprecated),which is     vulnerable to the same input (length is provided by the     calling application).The function is also used internally in the gssapi code for logging the OIDs received     by the server during GSSAPI authentication. This could be triggered remotely, when the server allows     GSSAPI authentication and logging verbosity is set at least to SSH_LOG_PACKET (3). This could cause self-     DoS of the per-connection daemon process.(CVE-2026-0966)

    A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts     files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to     inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in     a Denial of Service (DoS) for the client.(CVE-2026-0967)

    A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this     by sending a malformed 'longname' field within an `SSH_FXP_NAME` message during a file listing operation.
    This missing null check can lead to reading beyond allocated memory on the heap. This can cause unexpected     behavior or lead to a denial of service (DoS) due to application crashes.(CVE-2026-0968)

    A weakness has been identified in libssh up to 0.11.3. The impacted element is the function     sftp_extensions_get_name/sftp_extensions_get_data of the file src/sftp.c of the component SFTP Extension     Name Handler. Executing a manipulation of the argument idx can lead to out-of-bounds read. The attack may     be performed from remote. Upgrading to version 0.11.4 and 0.12.0 is sufficient to resolve this issue. This     patch is called 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60. You should upgrade the affected     component.(CVE-2026-3731)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization libssh 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 Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-18683 advisory.

    - Resolves: CVE-2025-4877
    - Resolves: CVE-2025-4878
    - Resolves: CVE-2025-5351
    - Resolves: CVE-2025-8114
    - Resolves: CVE-2025-8277
    - Resolves: CVE-2026-0964
    - Resolves: CVE-2026-0965
    - Resolves: CVE-2026-0966
    - Resolves: CVE-2026-0967

Tenable has extracted the preceding description block directly from the Oracle Linux 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 SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:21428-1 advisory.

    - Update to version 0.11.4:
    - CVE-2026-0964: SCP Protocol Path Traversal in ssh_scp_pull_request() (bsc#1258049)
    - CVE-2026-0965: Possible Denial of Service when parsing unexpected configuration files (bsc#1258045)
    - CVE-2026-0966: Buffer underflow in ssh_get_hexa() on invalid input (bsc#1258054)
    - CVE-2026-0967: Specially crafted patterns could cause DoS (bsc#1258081)
    - CVE-2026-0968: OOB Read in sftp_parse_longname() (bsc#1258080)
    - CVE-2025-8114: Fix NULL pointer dereference after allocation failure (bsc#1246974)
    - CVE-2025-8277: Fix memory leak of ephemeral key pair during repeated wrong KEX (bsc#1249375)

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 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6410 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6410-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     August 02, 2026                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : libssh     CVE ID         : CVE-2026-0964 CVE-2026-0965 CVE-2026-0966 CVE-2026-0967                      CVE-2026-0968 CVE-2026-3731 CVE-2026-15370 CVE-2026-59843                      CVE-2026-59844 CVE-2026-59845 CVE-2026-59846 CVE-2026-59847                      CVE-2026-59848 CVE-2026-59849 CVE-2026-59850     Debian Bug     : 1127693 1142537

    Several vulnerabilities were discovered in libssh, a tiny C SSH library,     which may result in denial of service, information disclosure and     potentially the execution of arbitrary code.

    For the stable distribution (trixie), these problems have been fixed in     version 0.11.5-0+deb13u1.

    We recommend that you upgrade your libssh packages.

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

    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.

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

    A weakness has been identified in libssh up to 0.11.3. The impacted element is the function     sftp_extensions_get_name/sftp_extensions_get_data of the file src/sftp.c of the component SFTP Extension     Name Handler. Executing a manipulation of the argument idx can lead to out-of-bounds read. The attack may     be performed from remote. Upgrading to version 0.11.4 and 0.12.0 is sufficient to resolve this issue. This     patch is called 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60. You should upgrade the affected     component.(CVE-2026-3731)

    A flaw was found in libssh where it can attempt to open arbitrary files during configuration parsing. A     local attacker can exploit this by providing a malicious configuration file or when the system is     misconfigured. This vulnerability could lead to a Denial of Service (DoS) by causing the system to try and     access dangerous files, such as block devices or large system files, which can disrupt normal     operations.(CVE-2026-0965)

    A malicious SCP server can send unexpected paths that could make the client application override local     files outside of working directory.This could be misused to create malicious executable or configuration     files and make the user execute them under specific consequences.This is the same issue as in OpenSSH,     tracked as CVE-2019-6111.(CVE-2026-0964)

    A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts     files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to     inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in     a Denial of Service (DoS) for the client.(CVE-2026-0967)

    The API function `ssh_get_hexa()` is vulnerable, when 0-lenght input is provided to this function. This     function is used internally in `ssh_get_fingerprint_hash()` and `ssh_print_hexa()` (deprecated),which is     vulnerable to the same input (length is provided by the     calling application).The function is also used internally in the gssapi code for logging the OIDs received     by the server during GSSAPI authentication. This could be triggered remotely, when the server allows     GSSAPI authentication and logging verbosity is set at least to SSH_LOG_PACKET (3). This could cause self-     DoS of the per-connection daemon process.(CVE-2026-0966)

    A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this     by sending a malformed 'longname' field within an `SSH_FXP_NAME` message during a file listing operation.
    This missing null check can lead to reading beyond allocated memory on the heap. This can cause unexpected     behavior or lead to a denial of service (DoS) due to application crashes.(CVE-2026-0968)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization libssh 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 libssh installed on the remote host is prior to 0.11.4 / 0.12.0. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-047-01 advisory.

    New libssh packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the libssh 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 Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-18160 advisory.

    [0.12.0-2]
    - Fix the verbosity of some new logs added in 0.12.0       Resolves: RHEL-93748

    [0.12.0-1]
    - Rebase to 0.12.0       Resolves: RHEL-133421, RHEL-70825, RHEL-130042
    - Add a Requires for crypto-policies instead of a Recommends       Resolves: RHEL-139045

Tenable has extracted the preceding description block directly from the Oracle Linux 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.

  - A flaw was found in libssh. The API function `ssh_get_hexa()` is vulnerable to a denial of service when     processing zero-length input. This can be exploited remotely by an attacker during GSSAPI (Generic     Security Service Application Program Interface) authentication if the server's logging verbosity is set to     `SSH_LOG_PACKET (3)` or higher. Successful exploitation could lead to a self-Denial of Service of the per-     connection daemon process. (CVE-2026-0966)

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

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:18160 advisory.

    * libssh: Buffer underflow in ssh_get_hexa() on invalid input (CVE-2026-0966)

    * libssh: Improper sanitation of paths received from SCP servers (CVE-2026-0964)

    * libssh: libssh: Denial of Service via improper configuration file handling (CVE-2026-0965)

    * libssh: libssh: Denial of Service via inefficient regular expression processing (CVE-2026-0967)

    * libssh: libssh: Denial of Service due to malformed SFTP message (CVE-2026-0968)

Tenable has extracted the preceding description block directly from the RockyLinux 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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0779-1 advisory.

    - CVE-2026-0964: improper sanitation of paths received from SCP servers can cause path traversal     (bsc#1258049).
    - CVE-2026-0965: possible denial of service when parsing unexpected configuration files (bsc#1258045).
    - CVE-2026-0966: buffer underflow in ssh_get_hexa() on invalid input (bsc#1258054).
    - CVE-2026-0967: specially crafted patterns could cause denial of service (bsc#1258081).
    - CVE-2026-0968: malformed SFTP message can lead to out of bound read (bsc#1258080).

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 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1344-1 advisory.

    - CVE-2026-3731: denial of service via out-of-bounds read in SFTP extension name handler (bsc#1259377).
    - CVE-2026-0964: SCP protocol path traversal in `ssh_scp_pull_request()` (bsc#1258049).
    - CVE-2026-0965: possible denial of service when parsing unexpected configuration files (bsc#1258045).
    - CVE-2026-0966: buffer underflow in `ssh_get_hexa()` on invalid input (bsc#1258054).
    - CVE-2026-0967: specially crafted patterns could cause a denial of service (bsc#1258081).
    - CVE-2026-0968: out-of-bounds read in `sftp_parse_longname()` (bsc#1258080).

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
319459	EulerOS Virtualization 2.10.1 : libssh (EulerOS-SA-2026-2027)	Nessus	Huawei Local Security Checks	2026/6/6	2026/6/8	medium
322180	Oracle Linux 9 : libssh (ELSA-2026-18683)	Nessus	Oracle Linux Local Security Checks	2026/6/23	2026/6/23	high
312123	SUSE SLES16 Security Update : libssh (SUSE-SU-2026:21428-1)	Nessus	SuSE Local Security Checks	2026/5/5	2026/5/5	high
331648	Debian dsa-6410 : libssh-4 - security update	Nessus	Debian Local Security Checks	2026/8/2	2026/8/2	medium
319452	EulerOS Virtualization 2.12.1 : libssh (EulerOS-SA-2026-2080)	Nessus	Huawei Local Security Checks	2026/6/6	2026/6/8	medium
299277	Slackware Linux 15.0 / current libssh Multiple Vulnerabilities (SSA:2026-047-01)	Nessus	Slackware Local Security Checks	2026/2/17	2026/4/14	medium
327004	Oracle Linux 10 : libssh (ELSA-2026-18160)	Nessus	Oracle Linux Local Security Checks	2026/7/15	2026/7/15	high
298574	Linux Distros Unpatched Vulnerability : CVE-2026-0966	Nessus	Misc.	2026/2/10	2026/8/2	high
319337	EulerOS Virtualization 2.10.0 : libssh (EulerOS-SA-2026-2054)	Nessus	Huawei Local Security Checks	2026/6/6	2026/6/8	medium
318292	RockyLinux 10 : libssh (RLSA-2026:18160)	Nessus	Rocky Linux Local Security Checks	2026/6/3	2026/6/3	high
301025	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libssh (SUSE-SU-2026:0779-1)	Nessus	SuSE Local Security Checks	2026/3/6	2026/4/14	medium
306680	SUSE SLES12 Security Update : libssh (SUSE-SU-2026:1344-1)	Nessus	SuSE Local Security Checks	2026/4/16	2026/5/6	medium

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