CVE-2026-125259High· 7.8▾ TwilightFFmpeg through 9.0.2 contains an integer overflow vulnerability in ff_prores_kostya_encode_init() that miscalculates frame_size_upper_bound using 32-bit arithmetic for large frame dimensions. Attackers can supply a high-resolution video …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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FFmpeg through 9.0.2 contains an integer overflow vulnerability in ff_prores_kostya_encode_init() that miscalculates frame_size_upper_bound using 32-bit arithmetic for large frame dimensions. Attackers can supply a high-resolution video transcoded with the prores_ks encoder, causing encode_frame() to write slices past an undersized packet buffer and corrupt heap memory.
FFmpeg <= 9.0.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-125253Medium· 5.3FFmpeg through 9.0.2 VP9 CBS Superframe Integer Overflow Out-of-Bounds Read
CVE-2026-125256High· 7.0FFmpeg through 9.0.2 Heap Buffer Overflow via RISC-V Vector diff_bytes Routine
CVE-2026-125267High· 7.8FFmpeg before 8.1.3 and 9.x before 9.0.2 Heap Out-of-Bounds Write via APAC Decoder
CVE-2026-125100Low· 3.3FFmpeg through 9.0.2 Integer Overflow in OpenEXR Decoder Tile Count
CVE-2026-125222High· 7.0FFmpeg through 9.0.2 Heap Buffer Overflow via hap_parse_frame_header()
CVE-2026-125234Medium· 5.5FFmpeg through 9.0.2 WavPack Encoder Integer Overflow Infinite Loop via wavpack_encode_init