CVE-2026-125249 - FFmpeg 7.1 through 9.0.2 Heap Out-of-Bounds Write via Vulkan Slice Buffer Sizing

CVE-2026-125249 - FFmpeg 7.1 through 9.0.2 Heap Out-of-Bounds Write via Vulkan Slice Buffer Sizing

https://cvefeed.io/rssfeed/latest.atom / Mon, 11/09/2026 - 22:52
CVE ID :CVE-2026-125249
Published : Nov. 9, 2026, 7:17 p.m. | 1 hour, 11 minutes ago
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.
Severity: 7.3 | HIGH
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