Dashboard / CVE-2026-125218

CVE-2026-125218

HIGH
MEDIUM Priority: 0.01 BB Relevance: 30/100
Published: 2026-11-09 Modified: 2026-11-13 First seen: 2026-11-09 Status: active

Attack Surface

No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: Passive
AT: Present
VC: High
VI: High
VA: High

Description

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in the APNG encoder's encode_apng() function in libavcodec/pngenc.c when frame size changes mid-stream. Attackers can supply crafted media whose resolution grows mid-stream, causing APNG_DISPOSE_OP_BACKGROUND memset writes past prev_frame and crashing or corrupting heap memory in transcoding applications.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
FFmpeg FFmpeg 0
FFmpeg FFmpeg 0

References & Advisories (5)

Bug Bounty Relevance

30 / 100
✓ No authentication

CVSS Score

7.3 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.14%
Raw Score 0.001430
Percentile 3.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00143
2026-11-12
0.00143
2026-11-10
0.00143

Intelligence Sources

mitre ref →
nvd ref →

External Links