CVE-2026-125267High· 7.8▾ TwilightFFmpeg before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in the APAC decoder in libavcodec/apac.c caused by an unreset bitstream index. Attackers can supply a crafted APAC file whose growing bitstream_in…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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FFmpeg before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in the APAC decoder in libavcodec/apac.c caused by an unreset bitstream index. Attackers can supply a crafted APAC file whose growing bitstream_index triggers an integer overflow, bypassing the reallocation check so memcpy() corrupts heap memory or crashes the application.
FFmpeg < 8.1.3FFmpeg >= 9.0 < 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-2026-125259High· 7.8FFmpeg through 9.0.2 Heap Buffer Overflow via ProRes prores_ks Encoder
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
CVE-2026-125227High· 7.0FFmpeg through 9.0.2 Heap Buffer Overflow via cbs_jpeg_write_scan Integer Overflow