Ubuntu 20.04 LTS / 22.04 LTS : FFmpeg vulnerabilities (USN-8750-1)

high Nessus Plugin ID 345735

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

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.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-8750-1

Plugin Details

Severity: High

ID: 345735

File Name: ubuntu_USN-8750-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/14/2026

Updated: 9/14/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.37

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-8461

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 7.8

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-58049

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ffmpeg, p-cpe:/a:canonical:ubuntu_linux:libavcodec-extra58, p-cpe:/a:canonical:ubuntu_linux:libavcodec-extra, p-cpe:/a:canonical:ubuntu_linux:libavcodec58, p-cpe:/a:canonical:ubuntu_linux:libavdevice58, p-cpe:/a:canonical:ubuntu_linux:libavfilter-extra7, p-cpe:/a:canonical:ubuntu_linux:libavfilter-extra, p-cpe:/a:canonical:ubuntu_linux:libavfilter7, p-cpe:/a:canonical:ubuntu_linux:libavformat-extra58, p-cpe:/a:canonical:ubuntu_linux:libavformat-extra, p-cpe:/a:canonical:ubuntu_linux:libavformat58, p-cpe:/a:canonical:ubuntu_linux:libavresample4, p-cpe:/a:canonical:ubuntu_linux:libavutil56, p-cpe:/a:canonical:ubuntu_linux:libpostproc55, p-cpe:/a:canonical:ubuntu_linux:libswresample3, p-cpe:/a:canonical:ubuntu_linux:libswscale5

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/14/2026

Vulnerability Publication Date: 4/13/2026

Reference Information

CVE: CVE-2026-12706, CVE-2026-30999, CVE-2026-58049, CVE-2026-70629, CVE-2026-70630, CVE-2026-70631, CVE-2026-8461

IAVB: 2026-B-0094-S, 2026-B-0169-S, 2026-B-0227

USN: 8750-1