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Back to active CVEs
Medium · CVSS 6.8CVE-2026-120244

FFmpeg 2.1 through 9.0.2 Uninitialized Memory Leak via PCX DecoderCVE-2026-120244

Answer in brief

CVE-2026-120244 records a Medium severity (CVSS 6.8) vulnerability in FFmpeg 2.1 through 9.0.2 Uninitialized Memory Leak via PCX Decoder. The current sources do not mark it as known exploited. The current feed maps FFmpeg/FFmpeg (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 1, 2026Updated Nov 1, 2026Source checked Nov 1, 2026First seen by HOL Nov 1, 2026Material review Nov 1, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps FFmpeg/FFmpeg (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
FFmpeg/FFmpeggeneric>=2.1 <=9.0.2Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for FFmpeg/FFmpeg.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 1, 2026

Sources and claim methodology

  • Source referencecode.ffmpeg.org
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

FFmpeg 2.1 through 9.0.2 contains a use of uninitialized resource vulnerability in the PCX decoder that allows attackers to leak heap memory through truncated RLE scanlines. Attackers can craft a PCX image whose RLE data ends early, causing pcx_decode_frame() to copy uninitialized av_malloc() buffer contents into visible decoded pixels.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP PathSame ffmpeg/ffmpeg package
  • FFmpeg 2.0 through 9.0.2 Information Disclosure via G2M Kempf PaletteSame ffmpeg/ffmpeg package
  • FFmpeg 0.10 through 9.0.2 Uninitialized Memory Disclosure via Sun Raster DecoderSame ffmpeg/ffmpeg package
  • FFmpeg 4.4 through 9.0.2 Uninitialized Memory Disclosure via CDXL HAM DecoderSame ffmpeg/ffmpeg package
  • FFmpeg 2.3 through 9.0.2 Huffyuv Decoder Uninitialized Heap Memory DisclosureSame ffmpeg/ffmpeg package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-908
Source
CVE List V5
Source checked
Nov 1, 2026
References
5 linked sources
Open source record