PT-2026-50871 · Red Hat · Red Hat Enterprise Linux Ai (Rhel Ai) 3+1

Published 2026-06-19 · Updated 2026-06-19 · CVE-2026-12706

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions FFmpeg (affected versions not specified)

Description A use-after-free issue exists in the RASC video decoder. The decode move() function initializes a read pointer into a decompressed buffer; however, a subsequent reallocation of that buffer during move-table processing results in a dangling pointer. An attacker can trigger this by providing a specially crafted AVI file containing a malicious RASC video stream, causing the decoder to read from freed heap memory, which may lead to a denial of service (crash).

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-12706

Affected Products

Red Hat Enterprise Linux Ai (Rhel Ai) 3

Red Hat Openshift

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-12706 · Security Note
• https://lists.ffmpeg.org/archives/list/[e-mail]/message/TTRIJZA7UL6KJTEDMMBGZPLLJERJ3EFX · Note
• https://twitter.com/VulmonFeeds/status/2067950118133772701 · Twitter Post
• https://bugzilla.redhat.com/show_bug.cgi?id=2490710 · Note
• https://patchwork.ffmpeg.org/project/ffmpeg/patch/177766314111.63.10674887811034989327@29965ddac10e · Note
• https://access.redhat.com/security/cve/CVE-2026-12706 · Note