PT-2026-134685

CVE-2026-120244

Published

2026-11-01

Updated

2026-11-01

Description by

CVSS 4.0

6.8

Medium

MetricsAV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions FFmpeg versions 2.1 through 9.0.2

Description The PCX decoder contains a use of uninitialized resource issue. An attacker can craft a PCX image with RLE (Run-Length Encoding, a form of lossless data compression) data that ends prematurely. This causes the pcx decode frame() function to copy uninitialized av malloc() buffer contents into visible decoded pixels, leading to a heap memory leak.

Recommendations Update FFmpeg to a version newer than 9.0.2.

Exploitability

Exploit

Fix

Impacts

Researchers

Adrian Junge

Joshua Rogers

Vendors

Affected products

Weakness enumeration

CWE-908: Use of Uninitialized Resource