GHSA-hp56-qgqc-859jHighCVSS 7.0
FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in the APNG encoder's...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-125218
- https://github.com/FFmpeg/FFmpeg/commit/9b99973b2bbecee0b7e1e57035b95498b42f54a6
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25682
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/pngenc.c#L1148
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-apng-encoder-heap-buffer-overflow-via-encode-apng
- https://github.com/advisories/GHSA-hp56-qgqc-859j