High severity7.0NVD Advisory· Published Nov 9, 2026
CVE-2026-125249
CVE-2026-125249
Description
FFmpeg 7.1 through 9.0.2 contains an integer overflow in ff_vk_decode_add_slice() in libavcodec/vulkan_decode.c that miscalculates the Vulkan hwaccel bitstream buffer size. Attackers can supply a crafted stream with over 2 GiB of slice data per frame, causing memcpy() to write past a smaller pooled host-mapped buffer.
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Affected products
1Patches
Vulnerability mechanics
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