Medium severity5.5NVD Advisory· Published Nov 1, 2026
CVE-2026-120245
CVE-2026-120245
Description
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
Affected products
1Patches
Vulnerability mechanics
References
5- code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24877nvd
- github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/sunrast.cnvd
- github.com/FFmpeg/FFmpeg/commit/356a391bf57df2fb80fd61f2821c8c83d15ce180nvd
- github.com/FFmpeg/FFmpeg/commit/66b6ca270b33fd74367d7d371f6de16ec664446envd
- www.vulncheck.com/advisories/ffmpeg-0.10-through-9.0.2-uninitialized-memory-disclosure-via-sun-raster-decodernvd
News mentions
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