A logic vulnerability was found in GStreamer's webrtcbin component. The _check_sdp_crypto() function contains an inverted boolean condition that causes it to accept remote SDP offers or answers that lack the required a=fingerprint attribute, while incorrectly rejecting those that include it. An attacker with the ability to intercept and modify WebRTC signaling messages could exploit this to bypass the SDP-level DTLS certificate fingerprint binding, weakening defenses against man-in-the-middle attacks on media streams.

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4839 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4839-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                  Andreans Henriksson     October 16, 2026                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : gst-plugins-bad1.0     Version        : 1.22.0-4+deb12u8     CVE ID         : CVE-2026-12892 CVE-2026-14935 CVE-2026-19387 CVE-2026-52718                      CVE-2026-52719 CVE-2026-52720 CVE-2026-53702 CVE-2026-59691                      CVE-2026-59692

    Several vulnerabilities were discovered in gst-plugins-bad1.0, a collection of     plugins for the GStreamer multimedia framework. Processing specially crafted     media files or network data could lead to denial of service, disclosure of     memory contents or potentially arbitrary code execution.

    For Debian 12 bookworm, these problems have been fixed in version     1.22.0-4+deb12u8.

    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 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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-106211 advisory.

    A logic vulnerability was found in GStreamer's webrtcbin component. The _check_sdp_crypto() function     contains an inverted boolean condition that causes it to accept remote SDP offers or answers that lack the     required a=fingerprint attribute, while incorrectly rejecting those that include it. An attacker with the     ability to intercept and modify WebRTC signaling messages could exploit this to bypass the SDP-level DTLS     certificate fingerprint binding, weakening defenses against man-in-the-middle attacks on media streams.

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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 6eee35e6-fca5-4db2-ab73-f27add3e3ef1 advisory.

    The GStreamer project reports:
    Multiple security issues were identified and fixed in the GStreamer framework.

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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21370-1 advisory.

    This update for gstreamer-plugins-bad fixes the following issues

    - CVE-2026-12891: unchecked aspect_ratio_idc value used as an array index in the H.266 parser could cause     a global out-       of-bounds read (bsc#1268872).
    - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
    - CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check     (bsc#1271051).
    - CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-     of-bounds write       (bsc#1268406).
    - CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read       (bsc#1268408).
    - CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer     (bsc#1268410).
    - CVE-2026-53701: multi-slice-in-tile partitions without slice index bounds checks could trigger an out-     of-bounds write       (bsc#1268172).
    - CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer     overflow       (bsc#1268168).
    - CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a     stack buffer       overflow (bsc#1271168).

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-2026:3125-1 advisory.

    - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
    - CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check     (bsc#1271051).
    - CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-     of-bounds write       (bsc#1268406).
    - CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read       (bsc#1268408).
    - CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer     (bsc#1268410).
    - CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer     overflow       (bsc#1268168).
    - CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a     stack buffer       overflow (bsc#1271168).

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-2026:3133-1 advisory.

    This update for gstreamer-plugins-bad fixes the following issues

    - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
    - CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check     (bsc#1271051).
    - CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-     of-bounds write (bsc#1268406).
    - CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read     (bsc#1268408).
    - CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer     (bsc#1268410).
    - CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer     overflow (bsc#1268168).
    - CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a     stack buffer overflow (bsc#1271168).

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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3058-1 advisory.

    This update for gstreamer-plugins-bad fixes the following issues

    - CVE-2026-12892: 1-byte heap out-of-bounds read in H.264 NAL extension slice parser (bsc#1268971).
    - CVE-2026-14935: webrtcbin accepts remote SDP without a=fingerprint due to inverted presence check     (bsc#1271051).
    - CVE-2026-52720: invalid check of total area instead of individual dimensions could trigger a heap out-     of-bounds write       (bsc#1268406).
    - CVE-2026-52721: crafted PCAP records during IPv4 or TCP header parsing could cause an out-of-bounds read       (bsc#1268408).
    - CVE-2026-52722: crafted VMnc stream with large cursor dimensions can overflow signed integer     (bsc#1268410).
    - CVE-2026-53702: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer     overflow       (bsc#1268168).
    - CVE-2026-59692: unvalidated peer certificate Subject DN printed during a DTLS handshake could cause a     stack buffer       overflow (bsc#1271168).

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.

  - A logic vulnerability was found in GStreamer's webrtcbin component. The _check_sdp_crypto() function     contains an inverted boolean condition that causes it to accept remote SDP offers or answers that lack the     required a=fingerprint attribute, while incorrectly rejecting those that include it. An attacker with the     ability to intercept and modify WebRTC signaling messages could exploit this to bypass the SDP-level DTLS     certificate fingerprint binding, weakening defenses against man-in-the-middle attacks on media streams.
    (CVE-2026-14935)

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

ID	Name	Product	Family	Type	Severity
366505	Debian dla-4839 : gir1.2-gst-plugins-bad-1.0 - security update	Nessus	Debian Local Security Checks	Local	high
342918	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: gstreamer1-plugins-bad-free (UTSA-2026-106211)	Nessus	Unity Linux Local Security Checks	Local	low
330005	FreeBSD : gstreamer1 -- multiple vulnerabilities (6eee35e6-fca5-4db2-ab73-f27add3e3ef1)	Nessus	FreeBSD Local Security Checks	Local	high
328916	openSUSE 16: gstreamer-plugins-bad / gstreamer-plugins-bad-chromaprint / etc (openSUSE-SU-2026:21370-1)	Nessus	SuSE Local Security Checks	Local	high
328680	SUSE SLES15: gstreamer-plugins-bad / gstreamer-plugins-bad-chromaprint / etc (SUSE-SU-2026:3125-1)	Nessus	SuSE Local Security Checks	Local	high
328677	SUSE SLES15: gstreamer-plugins-bad / gstreamer-plugins-bad-chromaprint / etc (SUSE-SU-2026:3133-1)	Nessus	SuSE Local Security Checks	Local	high
327301	SUSE SLED15: gstreamer-plugins-bad / gstreamer-plugins-bad-devel / etc (SUSE-SU-2026:3058-1)	Nessus	SuSE Local Security Checks	Local	high
325513	Linux Distros Unpatched Vulnerability : CVE-2026-14935	Nessus	Misc.	Local	low

Detections

Analytics

CVE-2026-14935

low

Tenable Plugins

high

low

high

high

high

high

high

low