FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.

ubuntu_linux USN-8680-1: Ubuntu 18.04 LTS / Ubuntu 20.04 LTS / Ubuntu 22.04 LTS / Ubuntu 24.04 LTS : FFmpeg vulnerabilities (USN-8680-1)

The remote Fedora 45 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-040732b5dc advisory.

    Latest FFmpeg stable release and rebuilds of dependent packages. Fixes a number of high severity security     bugs:
    CVE-2026-64832 CVE-2026-70628 CVE-2026-70632 CVE-2026-75147 CVE-2026-75146 .

    Includes:

    * icecat release 140.16.0
    * wivrn v26.9, which fixes install of the APK via the dashboard.


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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4150-1 advisory.

    - CVE-2026-58049: incorrect validation in the RASC video decoder can lead to an out-of-bounds heap write     and memory       corruption (bsc#1269550).
    - CVE-2026-64833: Out-of-Bounds Read via S/PDIF Muxer spdifenc.c (bsc#1272755).
    - CVE-2026-64834: Infinite Loop DoS via RTP/ASF Demuxer (bsc#1272757).
    - CVE-2026-65703: Out-of-Bounds Write in TDSC Video Decoder (bsc#1272759).
    - CVE-2026-65704: Out-of-Bounds Write via TY Demuxer and Shorten Decoder (bsc#1272760).
    - CVE-2026-65705: vf_floodfill Out-of-Bounds Write via filter_frame() (bsc#1272761).
    - CVE-2026-65706: vf_swaprect Out-of-Bounds Write via NV12 Frame Processing (bsc#1272762).
    - CVE-2026-66036: Heap Out-of-Bounds Write in vf_hqdn3d Filter (bsc#1272763).
    - CVE-2026-70628: signed integer underflows during subtitle buffer checks can cause heap buffer overflows     (bsc#1274268).
    - CVE-2026-70629: unvalidated decompressed frame sizes in video decoders can cause uninitialized heap     memory reads       (bsc#1274270).
    - CVE-2026-70630: unvalidated decompression sizes in Screenpresso frame decoding can cause uninitialized     heap memory       reads (bsc#1274282).
    - CVE-2026-70631: unvalidated decompression sizes in TIFF strip decoding can cause uninitialized heap     memory reads       (bsc#1274287).
    - CVE-2026-70632: unenforced frame dimensions in CineForm HD decoding can cause heap-based out-of-bounds     writes       (bsc#1274289).
    - CVE-2026-75142: stack buffer overflow in the MPEG-PS muxer (bsc#1276408).
    - CVE-2026-75143: heap buffer overflow in the RIST protocol reader (bsc#1276409).
    - CVE-2026-75144: heap buffer overflow in the VC-2/Dirac RTP packetizer (bsc#1276410).
    - CVE-2026-75146: out-of-bounds read in the DASH demuxer (bsc#1276412).

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-2026:4149-1 advisory.

    - CVE-2026-58049: incorrect validation in the RASC video decoder can lead to an out-of-bounds heap write     and memory       corruption (bsc#1269550).
    - CVE-2026-64833: Out-of-Bounds Read via S/PDIF Muxer spdifenc.c (bsc#1272755).
    - CVE-2026-64834: Infinite Loop DoS via RTP/ASF Demuxer (bsc#1272757).
    - CVE-2026-65703: Out-of-Bounds Write in TDSC Video Decoder (bsc#1272759).
    - CVE-2026-65704: Out-of-Bounds Write via TY Demuxer and Shorten Decoder (bsc#1272760).
    - CVE-2026-65705: vf_floodfill Out-of-Bounds Write via filter_frame() (bsc#1272761).
    - CVE-2026-65706: vf_swaprect Out-of-Bounds Write via NV12 Frame Processing (bsc#1272762).
    - CVE-2026-66036: Heap Out-of-Bounds Write in vf_hqdn3d Filter (bsc#1272763).
    - CVE-2026-70628: signed integer underflows during subtitle buffer checks can cause heap buffer overflows     (bsc#1274268).
    - CVE-2026-70629: unvalidated decompressed frame sizes in video decoders can cause uninitialized heap     memory reads       (bsc#1274270).
    - CVE-2026-70630: unvalidated decompression sizes in Screenpresso frame decoding can cause uninitialized     heap memory       reads (bsc#1274282).
    - CVE-2026-70631: unvalidated decompression sizes in TIFF strip decoding can cause uninitialized heap     memory reads       (bsc#1274287).
    - CVE-2026-70632: unenforced frame dimensions in CineForm HD decoding can cause heap-based out-of-bounds     writes       (bsc#1274289).
    - CVE-2026-75142: stack buffer overflow in the MPEG-PS muxer (bsc#1276408).
    - CVE-2026-75143: heap buffer overflow in the RIST protocol reader (bsc#1276409).
    - CVE-2026-75144: heap buffer overflow in the VC-2/Dirac RTP packetizer (bsc#1276410).
    - CVE-2026-75146: out-of-bounds read in the DASH demuxer (bsc#1276412).

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 Ubuntu 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8738-1 advisory.

    It was discovered that FFmpeg incorrectly handled certain video frames when using the hqdn3d filter. An     attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
    (CVE-2026-66036)

    Adrian Junge discovered that FFmpeg incorrectly handled certain compressed video files. An attacker could     possibly use this issue to expose sensitive information. (CVE-2026-66038)

    Adrian Junge discovered that FFmpeg incorrectly handled certain audio files. An attacker could possibly     use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-66039)

    Adrian Junge discovered that FFmpeg incorrectly handled certain subtitle files. An attacker could possibly     use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-70628)

    Adrian Junge discovered that FFmpeg incorrectly handled certain video files. An attacker could possibly     use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-70632)

Tenable has extracted the preceding description block directly from the Ubuntu 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-2026-106157 advisory.

    FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in     the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer     overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to     INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into     a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.

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 FFmpeg installed on the remote host is 0.5 or later but prior to 9.0. It is, therefore, affected by multiple vulnerabilities:

  - A signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c allows     attackers to trigger a heap buffer overflow by supplying a crafted WTV file, resulting in an out-of-bounds     heap write and potential memory corruption or code execution. (CVE-2026-70628)

  - An uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c allows     attackers to expose stale heap data by supplying a crafted TIFF file with a Deflate-compressed strip that     produces fewer bytes than declared. (CVE-2026-70631)

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.

  - FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in     the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer     overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to     INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into     a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.
    (CVE-2026-70628)

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

ID	Name	Product	Family	Type	Severity
349770	Fedora 45 : OpenBoard / Pencil2D / alsa-plugins / amarok / aqualung / atomes / etc (2026-040732b5dc)	Nessus	Fedora Local Security Checks	Local	high
346223	SUSE SLES15: libavcodec58_134 / libavformat58_76 / libavutil56_70 / etc (SUSE-SU-2026:4150-1)	Nessus	SuSE Local Security Checks	Local	critical
346205	SUSE SLED15: ffmpeg-4 / ffmpeg-4-libavcodec-devel / ffmpeg-4-libavdevice-devel / etc (SUSE-SU-2026:4149-1)	Nessus	SuSE Local Security Checks	Local	critical
344612	Ubuntu 26.04 LTS : FFmpeg vulnerabilities (USN-8738-1)	Nessus	Ubuntu Local Security Checks	Local	high
342877	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: ffmpeg (UTSA-2026-106157)	Nessus	Unity Linux Local Security Checks	Local	high
335156	FFmpeg 0.5 < 9.0 Multiple Vulnerabilities	Nessus	Misc.	Local	high
333301	Linux Distros Unpatched Vulnerability : CVE-2026-70628	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-70628

high

Tenable Plugins

Coming Soon

high

critical

critical

high

high

high

high