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RHEL 9 : Backport fixes for CVE-2026-64835 and CVE-2026-58049 (Important) (RHSA-2026:51180)

high Nessus Plugin ID 333119

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

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.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:51180

https://access.redhat.com/security/updates/classification/#important

http://www.nessus.org/u?dba06c28

Plugin Details

Severity: High

ID: 333119

File Name: redhat-RHSA-2026-51180.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/6/2026

Updated: 8/6/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

Vendor

Vendor Severity: Important

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-2026-64835

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:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:ffmpeg-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:ffmpeg-free-rhai, p-cpe:/a:redhat:enterprise_linux:ffmpeg, p-cpe:/a:redhat:enterprise_linux:libavcodec-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libavcodec-free-rhai, p-cpe:/a:redhat:enterprise_linux:libavdevice-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libavdevice-free-rhai, p-cpe:/a:redhat:enterprise_linux:libavfilter-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libavfilter-free-rhai, p-cpe:/a:redhat:enterprise_linux:libavformat-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libavformat-free-rhai, p-cpe:/a:redhat:enterprise_linux:libavutil-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libavutil-free-rhai, p-cpe:/a:redhat:enterprise_linux:libpostproc-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libpostproc-free-rhai, p-cpe:/a:redhat:enterprise_linux:libswresample-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libswresample-free-rhai, p-cpe:/a:redhat:enterprise_linux:libswscale-free-rhai-devel, p-cpe:/a:redhat:enterprise_linux:libswscale-free-rhai

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/6/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-58049, CVE-2026-64835

CWE: 125, 787

RHSA: 2026:51180