CVE-2026-125260
HIGH
NVD
CVSS Score
7
Severity
HIGH
Published
Nov 09, 2026
Vendor
unknown
Description
FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/exrenc.c that allows attackers to corrupt heap memory when encode_scanline_rle() processes frames taller than the encoder height. Attackers can supply crafted input whose resolution grows mid-stream, transcoded to OpenEXR with RLE compression, to write pointers past the scanline array and crash the application.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25682
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/exrenc.c#L226
- https://github.com/FFmpeg/FFmpeg/commit/9b99973b2bbecee0b7e1e57035b95498b42f54a6
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-buffer-overflow-in-exr-encoder-rle-path