CVE-2026-125247

medium

Description

FFmpeg through 9.0.2 contains an integer overflow vulnerability in dng_decode_tiles() that allows attackers to leak uninitialized memory via crafted DNG tile dimensions. Attackers can set TileWidth or TileLength near INT_MAX so the tile loop never runs, outputting a frame exposing uninitialized or stale heap memory.

References

https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-integer-overflow-via-dng-decode-tiles-in-libavcodec-tiff-c

https://github.com/FFmpeg/FFmpeg/commit/a9c070e52fecb7fb247db829130899db07953823

https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/tiff.c#L1007

https://github.com/FFmpeg/FFmpeg

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-120197

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24999

Details

Source: Mitre, NVD

Published: 2026-11-09

Updated: 2026-11-10

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 3.3

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

Severity: Low

CVSS v4

Base Score: 4.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00122