FFmpeg 3.0 < 9.0 Multiple Vulnerabilities

medium Nessus Plugin ID 335157

Synopsis

The remote host is affected by multiple vulnerabilities.

Description

The version of FFmpeg installed on the remote host is 3.0 or later but prior to 9.0. It is, therefore, affected by multiple vulnerabilities:

- An uninitialized heap memory read vulnerability in the native RSCC decoder (libavcodec/rscc.c) allows attackers to disclose heap memory contents by supplying a crafted video file with a compressed tile that decompresses fewer bytes than the declared tile geometry requires. (CVE-2026-70629)

- An uninitialized heap memory read vulnerability in the native Screenpresso decoder (libavcodec/screenpresso.c) allows attackers to recover sensitive memory contents by supplying a crafted SPV1 packet with a valid zlib stream that decompresses fewer bytes than the full frame requires. (CVE-2026-70630)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to FFmpeg version 9.0 or later.

See Also

https://ffmpeg.org/security.html

http://www.nessus.org/u?154cdbf5

http://www.nessus.org/u?48ba00f2

Plugin Details

Severity: Medium

ID: 335157

File Name: ffmpeg_CVE-2026-70629.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 8/13/2026

Updated: 8/13/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

CVSS v2

Risk Factor: Medium

Base Score: 4.9

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

CVSS Score Source: CVE-2026-70629

CVSS v3

Risk Factor: Medium

Base Score: 5.5

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

CVSS v4

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: cpe:/a:ffmpeg:ffmpeg

Required KB Items: installed_sw/FFmpeg

Patch Publication Date: 8/6/2026

Vulnerability Publication Date: 8/6/2026

Reference Information

CVE: CVE-2026-70629, CVE-2026-70630

CWE: 908