FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row
    cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte
    units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media
    stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap
    write and adjacent out-of-bounds read, leading to memory corruption. (CVE-2026-58049)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3e109a0c85 advisory.

    Latest upstream bugfix release from 8.1 branch. Changes:
    https://code.ffmpeg.org/FFmpeg/FFmpeg/src/branch/release/8.1/Changelog .























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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:74089 advisory.

    RPM packages are internal build artifacts and not supported on their own. They are only supported as part     of the Red Hat AI application platform.

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 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 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8750-1 advisory.

    Seung Min Shin discovered that FFmpeg did not correctly handle certain memory operations. If a user or     automated system were tricked into opening a specially crafted file, an attacker could cause a denial of     service. (CVE-2026-12706)

    Xinghang Lv discovered that FFmpeg did not correctly handle certain memory operations. If a user or     automated system were tricked into opening a specially crafted file, an attacker could cause a denial of     service. (CVE-2026-30999)

    It was discovered that FFmpeg did not correctly handle certain memory operations. If a user or automated     system were tricked into opening a specially crafted file, an attacker could cause a denial of service.
    (CVE-2026-58049)

    Adrian Junge discovered that FFmpeg did not correctly handle certain memory operations. If a user or     automated system were tricked into opening a specially crafted file, an attacker could leak sensitive     information. (CVE-2026-70629, CVE-2026-70630, CVE-2026-70631)

    Ori Hollander discovered that FFmpeg did not correctly handle certain memory operations. If a user or     automated system were tricked into opening a specially crafted file, an attacker could possibly cause a     denial of service or execute arbitrary code. (CVE-2026-8461)

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-2026-104821 advisory.

    FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row     cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte     units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media     stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap     write and adjacent out-of-bounds read, leading to memory corruption.

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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:52832 advisory.

    CVE-2026-64835 FFmpeg: Arbitrary code execution, information disclosure, or     denial of service via crafted ADX/AAX audio files     CVE-2026-58049 FFmpeg: Memory corruption via crafted RASC video stream

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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:52833 advisory.

    CVE-2026-64835 FFmpeg: Arbitrary code execution, information disclosure, or     denial of service via crafted ADX/AAX audio files     CVE-2026-58049 FFmpeg: Memory corruption via crafted RASC video stream

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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:51180 advisory.

    CVE-2026-64835 FFmpeg: Arbitrary code execution, information disclosure, or denial of service via crafted     ADX/AAX audio files     CVE-2026-58049 FFmpeg: Memory corruption via crafted RASC video stream

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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:43711 advisory.

    RPM packages are internal build artifacts and not supported on their own. They are only supported as part     of the Red Hat AI application platform.

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.

  - FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row     cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte     units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media     stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap     write and adjacent out-of-bounds read, leading to memory corruption. (CVE-2026-58049)

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

ID	Name	Product	Family	Type	Severity
462638	Echo: ffmpeg: security update to 7:7.1.5-0+deb13u1+e3	Tenable Cloud Security	Echo Local Security Checks	Local	high
462638	Echo: ffmpeg: security update to 7:7.1.5-0+deb13u1+e3	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
358433	Fedora 44 : ffmpeg (2026-3e109a0c85)	Nessus	Fedora Local Security Checks	Local	critical
353427	RHEL 9 : RHEL AI 3.0 RPM runtime CVE fix - ffmpeg (Moderate) (RHSA-2026:74089)	Nessus	Red Hat 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
345735	Ubuntu 20.04 LTS / 22.04 LTS : FFmpeg vulnerabilities (USN-8750-1)	Nessus	Ubuntu Local Security Checks	Local	high
340921	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: ffmpeg (UTSA-2026-104821)	Nessus	Unity Linux Local Security Checks	Local	high
334152	RHEL 9 : RHELAI 3.0 Backport fixes for CVE-2026-64835 and CVE-2026-58049 (Important) (RHSA-2026:52832)	Nessus	Red Hat Local Security Checks	Local	high
334148	RHEL 9 : RHELAI 3.2 Backport fixes for CVE-2026-64835 and CVE-2026-58049 (Important) (RHSA-2026:52833)	Nessus	Red Hat Local Security Checks	Local	high
333119	RHEL 9 : Backport fixes for CVE-2026-64835 and CVE-2026-58049 (Important) (RHSA-2026:51180)	Nessus	Red Hat Local Security Checks	Local	high
329081	RHEL 9 : RHEL AI 3.5 RPM runtime CVE fix - ffmpeg (Important) (RHSA-2026:43711)	Nessus	Red Hat Local Security Checks	Local	high
323514	Linux Distros Unpatched Vulnerability : CVE-2026-58049	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-58049

high

Tenable Plugins

high

high

critical

high

critical

critical

high

high

high

high

high

high

high