The vulnerability of the decode_dlta() function in the libavcodec/rasc.c file of the RASC video decoder from the FFmpeg multimedia library allows a attacker to cause a service failure.

The vulnerability of the decodedlta function in the libavcodec/rasc.c file of the RASC video decoder from the FFmpeg multimedia library is related to buffer overflow attacks. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...

CVE-2026-58049 FFmpeg - Out-of-Bounds Write in RASC Decoder decode_dlta()

FFmpeg's RASC video decoder decodedlta in libavcodec/rasc.c performs 32-bit reads and writes at the row cursor before the NEXTLINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A...