What is CVE-2026-125180?

CVE-2026-125180 is a medium-severity vulnerability in Ffmpeg, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-11-09.

How severe is CVE-2026-125180?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Ffmpeg

CVE-2026-125180

FFmpeg 8.1 through 9.0.2 contains a memory exhaustion vulnerability in the libavcodec/exif.c parser that allows attackers to amplify allocations by pointing many IFD entries at overlapping payloads. Attackers can embed a small crafted EXIF block in TIFF, JPEG, PNG or WebP images to trigger quadratic memory allocation, causing denial of service in decoding applications.

Published 2026-11-09.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Ffmpeg

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25408 (issue-tracking)
github.com/FFmpeg/FFmpeg (product)
github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/exif.c (technical-description)
Patch Commit (patch)
VulnCheck Advisory: FFmpeg 8.1 through 9.0.2 EXIF Parser Memory Exhaustion via Overlapping Tags (third-party-advisory)

Frequently asked questions

What is CVE-2026-125180?: CVE-2026-125180 is a medium-severity vulnerability in Ffmpeg, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-11-09.
How severe is CVE-2026-125180?: Medium severity. CVSS v3 base score is 5.5 out of 10.