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TI-2020-13938 Aliases CVE-2020-20902GHSA-fv2v-8v2v-g9q3

A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in…

Priority LOW 31CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter.c in FFmpeg 4.2.1 during computation of the denominator of pseudo-normalized correlation R'(0), that could result in disclosure of information.

Why it matters now

EPSS 0.01171 67th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:*4.2.1VulnerableFFmpeg
  • cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·FFmpeg

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-20902
  2. 2026-10-03 Alias added: GHSA-fv2v-8v2v-g9q3

References

Patch 1

Other 1

  • TI-2025-19015 FFmpeg git-master before commit d5873b was discovered to contain a memory leak in the component libavutil/iamf.c. CVSS 3.1HIGH 8.8
  • TI-2024-21238 FFmpeg 7.0 contains a heap-buffer-overflow at libavfilter/vf_tiltandshift.c:189:5 in copy_column. CVSS 3.1HIGH 8.4
  • TI-2023-06050 Ffmpeg: null pointer dereference in ffmpeg hls parsing CVSS 3.1HIGH 7.5
  • TI-2023-28420 Buffer Overflow vulnerability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to… CVSS 3.1HIGH 8.0
  • TI-2023-27357 FFmpeg v.n6.1-3-g466799d4f5 allows a heap-based buffer overflow via the… CVSS 3.1HIGH 8.0
  • TI-2023-27044 Buffer Overflow vulnerability in FFmpeg version n6.1-3-g466799d4f5, allows a local… CVSS 3.1HIGH 8.0
See all 514 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences