The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6204 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6204-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     April 09, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : openssh     CVE ID         : CVE-2026-3497     Debian Bug     : 1130595

    Jeremy Brown discovered a flaw in the GSSAPI Key Exchange patch applied     in Debian to OpenSSH, an implementation of the SSH protocol suite,     affecting non-default configurations with the GSSAPIKeyExchange setting     enabled. A remote attacker can take advantage of this flaw to cause a     denial of service, or potentially the execution of arbitrary code.

    For the oldstable distribution (bookworm), this problem has been fixed     in version 1:9.2p1-2+deb12u9. This update includes fixes for     CVE-2025-61984 and CVE-2025-61985 which were queued for the Debian     bookworm 12.14 point release.

    For the stable distribution (trixie), this problem has been fixed in     version 1:10.0p1-7+deb13u2.

    We recommend that you upgrade your openssh packages.

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

    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 version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0991 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2025-61984:
    A flaw was found in OpenSSH where control characters in usernames were not properly validated when sourced     from untrusted inputs like the command line or configuration expansion. If a ProxyCommand is used, these     control characters could modify command behavior, potentially leading to code execution.

    CVE-2025-61985:
    A flaw was found in OpenSSH where the SSH client accepted \0 (null) characters in ssh:// URIs. When a     ProxyCommand is configured, these characters could alter how the command is parsed, potentially leading to     code execution depending on how the proxy is set up.

Tenable has extracted the preceding description block directly from the Tencent 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 version of AOS installed on the remote host is prior to 7.5.0.6. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-7.5.0.6 advisory.

  - A vulnerability has been found in GNU Binutils 2.45. The affected element is the function elf_swap_shdr in     the library bfd/elfcode.h of the component Linker. The manipulation leads to heap-based buffer overflow.
    The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The     identifier of the patch is 9ca499644a21ceb3f946d1c179c38a83be084490. To fix this issue, it is recommended     to deploy a patch. The code maintainer replied with [f]ixed for 2.46. (CVE-2025-11083)

  - The urllib.parse.urlsplit() and urlparse() functions improperly validated bracketed hosts (`[]`), allowing     hosts that weren't IPv6 or IPvFuture. This behavior was not conformant to RFC 3986 and potentially enabled     SSRF if a URL is processed by more than one URL parser. (CVE-2024-11168)

  - CPython 3.9 and earlier doesn't disallow configuring an empty list ([]) for     SSLContext.set_npn_protocols() which is an invalid value for the underlying OpenSSL API. This results in a     buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity     due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically     a protocol name would be configured). (CVE-2024-5642)

  - A vulnerability has been found in the CPython `venv` module and CLI where path names provided when     creating a virtual environment were not quoted properly, allowing the creator to inject commands into     virtual environment activation scripts (ie source venv/bin/activate). This means that attacker-     controlled virtual environments are able to run commands when the virtual environment is activated.
    Virtual environments which are not created by an attacker or which aren't activated before being used (ie     ./venv/bin/python) are not affected. (CVE-2024-9287)

  - The Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that     included square brackets which isn't valid according to RFC 3986. Square brackets are only meant to be     used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential     parsing across the Python URL parser and other specification-compliant URL parsers. (CVE-2025-0938)

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 AOS installed on the remote host is prior to 7.3.1.5. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-7.3.1.5 advisory.

  - A vulnerability has been found in GNU Binutils 2.45. The affected element is the function elf_swap_shdr in     the library bfd/elfcode.h of the component Linker. The manipulation leads to heap-based buffer overflow.
    The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The     identifier of the patch is 9ca499644a21ceb3f946d1c179c38a83be084490. To fix this issue, it is recommended     to deploy a patch. The code maintainer replied with [f]ixed for 2.46. (CVE-2025-11083)

  - LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read     vulnerability exists in png_image_read_composite when processing palette images with     PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly     applies background compositing during premultiplication, violating the invariant component  alpha  257     required by the simplified PNG API. This issue has been patched in version 1.6.51. (CVE-2025-64720)

  - LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable     Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow     vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit     interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond     allocated buffer bounds. This issue has been patched in version 1.6.51. (CVE-2025-65018)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: RMI). Supported versions that are affected are Oracle Java SE: 8u471,     8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9;
    Oracle GraalVM Enterprise Edition: 21.3.16. Difficult to exploit vulnerability allows unauthenticated     attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK,     Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized     update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM     Enterprise Edition accessible data as well as unauthorized read access to a subset of Oracle Java SE,     Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be     exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the     APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web     Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from     the internet) and rely on the Java sandbox for security. (CVE-2026-21925)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of     Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u471,     8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9;
    Oracle GraalVM Enterprise Edition: 21.3.16. Easily exploitable vulnerability allows unauthenticated     attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK,     Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than     the attacker and while the vulnerability is in Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM     Enterprise Edition, attacks may significantly impact additional products (scope change). Successful     attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle     Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized     read access to a subset of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition     accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g.,     through a web service which supplies data to the APIs. This vulnerability also applies to Java     deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets,     that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox     for security. (CVE-2026-21933)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006162 advisory.

    ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code     execution when a ProxyCommand is used.

Tenable has extracted the preceding description block directly from the Unity 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.

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-2025:4067-1 advisory.

    - CVE-2025-61984: Fixed code execution via control characters in usernames when a ProxyCommand is used     (bsc#1251198)
    - CVE-2025-61985: Fixed code execution via '\0' character in ssh:// URI when a ProxyCommand is used     (bsc#1251199)

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 RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:23481 advisory.

    * openssh: OpenSSH: Control characters in usernames can lead to code execution via ProxyCommand     (CVE-2025-61984)

    * openssh: OpenSSH: Null character in ssh:// URI can lead to code execution via ProxyCommand     (CVE-2025-61985)

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 AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:23480 advisory.

    * openssh: OpenSSH: Control characters in usernames can lead to code execution via ProxyCommand     (CVE-2025-61984)
      * openssh: OpenSSH: Null character in ssh:// URI can lead to code execution via ProxyCommand     (CVE-2025-61985)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2025:0198 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2025-61984:
    ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly     untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted     sources are the command line and %-sequence expansion of a configuration file. (A configuration file that     provides a complete literal username is not categorized as an untrusted source.)

    CVE-2025-61985:
    ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code     execution when a ProxyCommand is used.

Tenable has extracted the preceding description block directly from the Alibaba Cloud 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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-9d457091e8 advisory.

    Added fixes for CVE-2025-61985 and CVE-2025-61984

Tenable has extracted the preceding description block directly from the Fedora 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 MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-11563:07 advisory.

    * openssh: OpenSSH: Control characters in usernames can lead to code execution via ProxyCommand     (CVE-2025-61984)
      * openssh: OpenSSH: Null character in ssh:// URI can lead to code execution via ProxyCommand     (CVE-2025-61985)

Tenable has extracted the preceding description block directly from the MiracleLinux 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.

  - ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code     execution when a ProxyCommand is used. (CVE-2025-61985)

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

The version of AHV installed on the remote host is prior to 11.0.1 / AHV-11.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-11.0.1 advisory.

  - A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages     to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized     cipher context. This occurs because the OpenSSL error code returned aliases with the SSH_OK code,     resulting in libssh not properly detecting the error returned by the OpenSSL library. This issue can lead     to undefined behavior, including compromised data confidentiality and integrity or crashes.
    (CVE-2025-5987)

  - A vulnerability has been found in GNU Binutils 2.45. The affected element is the function elf_swap_shdr in     the library bfd/elfcode.h of the component Linker. The manipulation leads to heap-based buffer overflow.
    The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The     identifier of the patch is 9ca499644a21ceb3f946d1c179c38a83be084490. To fix this issue, it is recommended     to deploy a patch. The code maintainer replied with [f]ixed for 2.46. (CVE-2025-11083)

  - 1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise     made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3.
    The same cookie name is set - but with just a slash as path (`path=\/\,`). Since this site is not     secure, the cookie *should* just be ignored. 4. A bug in the path comparison logic makes curl read outside     a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the     wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to     expectations and depending on the memory contents immediately following the single-byte allocation that     holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie     since it was already set as secure on a secure host so overriding it on an insecure host should not be     okay. (CVE-2025-9086)

  - Vim is an open source, command line text editor. Prior to version 9.1.1552, a path traversal issue in     Vim's tar.vim plugin can allow overwriting of arbitrary files when opening specially crafted tar archives.
    Impact is low because this exploit requires direct user interaction. However, successfully exploitation     can lead to overwriting sensitive files or placing executable code in privileged locations, depending on     the permissions of the process editing the archive. The victim must edit such a file using Vim which will     reveal the filename and the file content, a careful user may suspect some strange things going on.
    Successful exploitation could results in the ability to execute arbitrary commands on the underlying     operating system. Version 9.1.1552 contains a patch for the vulnerability. (CVE-2025-53905)

  - Vim is an open source, command line text editor. Prior to version 9.1.1551, a path traversal issue in     Vim's zip.vim plugin can allow overwriting of arbitrary files when opening specially crafted zip archives.
    Impact is low because this exploit requires direct user interaction. However, successfully exploitation     can lead to overwriting sensitive files or placing executable code in privileged locations, depending on     the permissions of the process editing the archive. The victim must edit such a file using Vim which will     reveal the filename and the file content, a careful user may suspect some strange things going on.
    Successful exploitation could results in the ability to execute arbitrary commands on the underlying     operating system. Version 9.1.1551 contains a patch for the vulnerability. (CVE-2025-53906)

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
307671	Debian dsa-6204 : openssh-client - security update	Nessus	Debian Local Security Checks	2026/4/21	2026/4/21	medium
325296	TencentOS Server 3: openssh (TSSA-2025:0991)	Nessus	Tencent Local Security Checks	2026/7/7	2026/7/7	low
299670	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-7.5.0.6)	Nessus	Misc.	2026/2/20	2026/2/23	medium
299799	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-7.3.1.5)	Nessus	Misc.	2026/2/23	2026/4/7	medium
302313	Unity Linux 20.1070e Security Update: openssh (UTSA-2026-006162)	Nessus	Unity Linux Local Security Checks	2026/3/15	2026/3/15	low
275266	SUSE SLED15: openssh / openssh-askpass-gnome / openssh-cavs / openssh-clients / etc (SUSE-SU-2025:4067-1)	Nessus	SuSE Local Security Checks	2025/11/13	2026/6/25	low
279081	RockyLinux 8 : openssh (RLSA-2025:23481)	Nessus	Rocky Linux Local Security Checks	2025/12/18	2025/12/18	low
279607	AlmaLinux 9 : openssh (ALSA-2025:23480)	Nessus	Alma Linux Local Security Checks	2025/12/23	2025/12/23	low
280121	Alibaba Cloud Linux 3 : 0198: openssh (ALINUX3-SA-2025:0198)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/12/29	2025/12/29	low
282626	Fedora 42 : openssh (2026-9d457091e8)	Nessus	Fedora Local Security Checks	2026/1/12	2026/4/30	low
283033	MiracleLinux 9 : openssh-8.7p1-47.el9_7.ML.1 (AXSA:2025-11563:07)	Nessus	Miracle Linux Local Security Checks	2026/1/13	2026/1/13	low
269333	Linux Distros Unpatched Vulnerability : CVE-2025-61985	Nessus	Misc.	2025/10/8	2026/7/19	low
303851	Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-11.0.1)	Nessus	Misc.	2026/3/26	2026/7/15	medium

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