CVE-2025-59730 — Out-of-bounds Write in Ffmpeg
Severity
5.7MEDIUMNVD
EPSS
0.0%
top 95.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 6
Description
When decoding a frame for a SANM file (ANIM v0 variant), the decoded data can be larger than the buffer allocated for it.
Frames encoded with codec 48 can specify their resolution (width x height). A buffer of appropriate size is allocated depending on the resolution.
This codec can encode the frame contents using a run-length encoding algorithm. There are no checks that the decoded frame fits in the allocated buffer, leading to a heap-buffer-overflow.
process_frame_obj initializes the buffer…
CVSS vector
CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
Affected Packages2 packages
🔴Vulnerability Details
3GHSA▶
GHSA-3x55-g2vp-hv3w: When decoding a frame for a SANM file (ANIM v0 variant), the decoded data can be larger than the buffer allocated for it↗2025-10-06
OSV▶
CVE-2025-59730: When decoding a frame for a SANM file (ANIM v0 variant), the decoded data can be larger than the buffer allocated for it↗2025-10-06
CVEList▶
Heap-buffer-overflow write in FFmpeg SANM decoding due to lack of bounds-checking in old_codec48↗2025-10-06