CVE & CISA-KEV Catalog

CVE-2026-12706

MEDIUM
6.5
CVSS v3
NVD

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).

CWE-416Use After Free

How to fix

Remediation Available
ffmpegDebian
Fixed in:7:5.1.9-0+deb12u1CVE-2026-12706
Fixed in:7:7.1.4-0+deb13u1CVE-2026-12706
Fixed in:7:8.1.1-1CVE-2026-12706

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

0.24%probability of exploitation in 30 days
16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2019-0708Critical9.8100%KEV + Ransom-
CVE-2021-31166Critical9.8100%KEVFix
CVE-2015-5119Critical9.899%KEV-
CVE-2010-3962High8.197%KEV-
CVE-2015-0313Critical9.896%KEVFix
CVE-2017-9798High7.595%-Fix
Embed a live status badge for CVE-2026-12706
CVE-2026-12706 severity badge

Markdown

[![CVE-2026-12706](https://tridentstack.com/cve/badge/CVE-2026-12706.svg)](https://tridentstack.com/cve/CVE-2026-12706)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-12706"><img src="https://tridentstack.com/cve/badge/CVE-2026-12706.svg" alt="CVE-2026-12706"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-22.