CVE-2026-12706

MEDIUM EPSS 15.6%
Published Jun 19, 20261w ago · Modified Jun 22, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jun 19, 2026 1w ago
Last Modified Jun 22, 2026 1w ago

Description

A use-after-free vulnerability was found in FFmpeg's RASC video decoder. The decode_move() function initializes a read pointer into a decompressed buffer, but a subsequent reallocation of that same buffer during move-table processing leaves the pointer dangling. An attacker could exploit this by providing a specially crafted AVI file containing a malicious RASC video stream. When a user opens or plays the file, the decoder reads from freed heap memory, which could lead to a denial of service (crash).

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

References 4

  • access.redhat.com https://access.redhat.com/security/cve/CVE-2026-12706
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2490710
  • lists.ffmpeg.org https://lists.ffmpeg.org/archives/list/ffmpeg-devel@ffmpeg.org/message/TTRIJZA7UL6KJTEDMMBGZPLLJERJ3EFX/
  • patchwork.ffmpeg.org https://patchwork.ffmpeg.org/project/ffmpeg/patch/177766314111.63.10674887811034989327@29965ddac10e/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.