A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0948 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-73434:
    A flaw was found in GStreamer gst-plugins-good (avidemux). In gst_avi_demux_riff_parse_vprp(), the number     of available gst_riff_vprp_video_field_desc entries is calculated by dividing the remaining buffer size by     the attacker-controlled vprp->fields value, rather than by sizeof(gst_riff_vprp_video_field_desc). This     can cause the parser to treat more field descriptors as available than fit in the input buffer, resulting     in out-of-bounds reads. Processing a crafted AVI via playbin/decodebin can crash the application (denial     of service). Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

    CVE-2026-73433:
    A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd     chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets without verifying     sufficient data remains, causing heap out-of-bounds read/write and denial of service.

    CVE-2025-47183:
    In GStreamer through 1.26.1, the isomp4 plugin's qtdemux_parse_tree function may read past the end of a     heap buffer while parsing an MP4 file, leading to information disclosure.

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 remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1676:05 advisory.

    * gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP     depayloaders (CVE-2026-18649)
      * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing     leading to out-of-bounds read/write (CVE-2026-73433)
      * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1636:04 advisory.

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)
      * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:56966 advisory.

    * gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP     depayloaders (CVE-2026-18649)
      * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing     leading to out-of-bounds read/write (CVE-2026-73433)
      * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:56966 advisory.

    * gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP     depayloaders (CVE-2026-18649)

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)

    * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-56966 advisory.

    - Fix CVE-2026-73434: out-of-bounds read in AVI demuxer vprp handling       Resolves: RHEL-239048
    - Fix CVE-2026-18649 in H.264/H.265 RTP depayloaders       Resolves: RHEL-224145

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 Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:56966 advisory.

    GStreamer is a streaming media framework based on graphs of filters which operate on media data. The     gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under     the LGPL license.

    Security Fix(es):

    * gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP     depayloaders (CVE-2026-18649)

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)

    * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:55434 advisory.

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)
      * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:55436 advisory.

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)
      * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-55434 advisory.

    - Fix CVE-2026-73434: out-of-bounds read in AVI demuxer vprp handling       Resolves: RHEL-239045

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 Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-55436 advisory.

    - Fix CVE-2026-73434: out-of-bounds read in AVI demuxer vprp handling       Resolves: RHEL-239042

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 RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55434 advisory.

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)

    * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55436 advisory.

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)

    * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55436 advisory.

    GStreamer is a streaming media framework based on graphs of filters which operate on media data. The     gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under     the LGPL license.

    Security Fix(es):

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)

    * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55434 advisory.

    GStreamer is a streaming media framework based on graphs of filters which operate on media data. The     gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under     the LGPL license.

    Security Fix(es):

    * gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading     to out-of-bounds read/write (CVE-2026-73433)

    * gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing     (CVE-2026-73434)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd     chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes)     without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the     counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to     read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end.
    Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure     (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux     element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI     is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
    (CVE-2026-73433)

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

ID	Name	Product	Family	Type	Severity
342178	TencentOS Server 4: gstreamer1-plugins-good (TSSA-2026:0948)	Nessus	Tencent Local Security Checks	Local	medium
341009	MiracleLinux 8 : gstreamer1-plugins-good-1.16.1-7.el8_10.3 (AXSA:2026-1676:05)	Nessus	Miracle Linux Local Security Checks	Local	medium
339115	MiracleLinux 9 : gstreamer1-plugins-good-1.22.12-7.el9_8.4 (AXSA:2026-1636:04)	Nessus	Miracle Linux Local Security Checks	Local	medium
338319	AlmaLinux 8 : gstreamer1-plugins-good (ALSA-2026:56966)	Nessus	Alma Linux Local Security Checks	Local	medium
338233	RockyLinux 8 : gstreamer1-plugins-good (RLSA-2026:56966)	Nessus	Rocky Linux Local Security Checks	Local	medium
338188	Oracle Linux 8 : gstreamer1-plugins-good (ELSA-2026-56966)	Nessus	Oracle Linux Local Security Checks	Local	medium
338174	RHEL 8 : gstreamer1-plugins-good (RHSA-2026:56966)	Nessus	Red Hat Local Security Checks	Local	medium
337655	AlmaLinux 10 : gstreamer1-plugins-good (ALSA-2026:55434)	Nessus	Alma Linux Local Security Checks	Local	medium
337653	AlmaLinux 9 : gstreamer1-plugins-good (ALSA-2026:55436)	Nessus	Alma Linux Local Security Checks	Local	medium
336008	Oracle Linux 10 : gstreamer1-plugins-good (ELSA-2026-55434)	Nessus	Oracle Linux Local Security Checks	Local	medium
336003	Oracle Linux 9 : gstreamer1-plugins-good (ELSA-2026-55436)	Nessus	Oracle Linux Local Security Checks	Local	medium
335975	RockyLinux 10 : gstreamer1-plugins-good (RLSA-2026:55434)	Nessus	Rocky Linux Local Security Checks	Local	medium
335974	RockyLinux 9 : gstreamer1-plugins-good (RLSA-2026:55436)	Nessus	Rocky Linux Local Security Checks	Local	medium
335958	RHEL 9 : gstreamer1-plugins-good (RHSA-2026:55436)	Nessus	Red Hat Local Security Checks	Local	medium
335920	RHEL 10 : gstreamer1-plugins-good (RHSA-2026:55434)	Nessus	Red Hat Local Security Checks	Local	medium
334992	Linux Distros Unpatched Vulnerability : CVE-2026-73433	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-73433

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Tenable Plugins

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