GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the processing of APS units. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28911.

Multiple Vulnerabilities in GStreamer

The remote Fedora 43 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-e6d8e9fd49 advisory.

    Update to gstreamer-1.26.11.

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 Fedora 42 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-3cc99e7d09 advisory.

    Update to gstreamer-1.26.11.

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 Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6190 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6190-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     April 01, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : gst-plugins-bad1.0     CVE ID         : CVE-2026-2923 CVE-2026-3081 CVE-2026-3082 CVE-2026-3084                      CVE-2026-3086

    Multiple multiple vulnerabilities were discovered in plugins for the     GStreamer media framework and its codecs and demuxers, which may result     in denial of service or potentially the execution of arbitrary code if     a malformed media file is opened.

    For the oldstable distribution (bookworm), these problems have been fixed     in version 1.22.0-4+deb12u7.

    For the stable distribution (trixie), these problems have been fixed in     version 1.26.2-3+deb13u1.

    We recommend that you upgrade your gst-plugins-bad1.0 packages.

    For the detailed security status of gst-plugins-bad1.0 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/gst-plugins-bad1.0

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

  - GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability     allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with     this library is required to exploit this vulnerability but attack vectors may vary depending on the     implementation. The specific flaw exists within the processing of APS units. The issue results from the     lack of proper validation of user-supplied data, which can result in a write past the end of an allocated     buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
    Was ZDI-CAN-28911. (CVE-2026-3086)

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

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 791d4b29-19fb-11f1-87cc-e73692421fef advisory.

    The GStreamer project reports multiple security vulnerabilities fixed in the 1.28.1 release:
    Twelve security vulnerabilities were addressed, including:
    These could lead to application crashes or potentially arbitrary code execution.

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.

ID	Name	Product	Family	Severity
305031	Fedora 43 : mingw-gstreamer1 / mingw-gstreamer1-plugins-bad-free / etc (2026-e6d8e9fd49)	Nessus	Fedora Local Security Checks	high
305022	Fedora 42 : mingw-gstreamer1 / mingw-gstreamer1-plugins-bad-free / etc (2026-3cc99e7d09)	Nessus	Fedora Local Security Checks	high
304693	Debian dsa-6190 : gir1.2-gst-plugins-bad-1.0 - security update	Nessus	Debian Local Security Checks	high
301754	Linux Distros Unpatched Vulnerability : CVE-2026-3086	Nessus	Misc.	high
301464	FreeBSD : gstreamer1 -- multiple vulnerabilities (791d4b29-19fb-11f1-87cc-e73692421fef)	Nessus	FreeBSD Local Security Checks	high

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CVE-2026-3086

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