CVE-2025-59729

When parsing the header for a DHAV file, there's an integer underflow in offset calculation that leads to reading the duration from before the start of the allocated buffer. If we load a DHAV file that is larger than MAXDURATIONBUFFERSIZE bytes 0x100000 for example 0x101000 bytes, then at 0 we ha...

CVE-2025-59729

CVE-2025-59729 affects FFmpeg’s DHAV handling. The provided technical description shows an integer underflow in the offset calculation when parsing a DHAV header, causing a 32-bit offset read to reference data outside the allocated buffer. In large DHAV files (e.g., > 0x100000 bytes), the end_...