Bug 2570374 (CVE-2026-125248)

Summary: CVE-2026-125248 ffmpeg: ffmpeg: Memory corruption via integer overflow in FFV1 Vulkan encoder
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FFmpeg. An integer overflow in the Vulkan-accelerated FFV1 video encoder allows an attacker to cause memory corruption by supplying a specially crafted, large image or video file for transcoding. Processing the file results in an undersized graphics processing unit (GPU) buffer allocation, leading to an out-of-bounds write. This flaw can cause an application crash resulting in a denial of service (DoS) or potentially arbitrary code execution.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-10 19:54:21 UTC
FFmpeg 9.0 through 9.0.2 contains an integer overflow vulnerability in libavcodec/ffv1enc_vulkan.c that undersizes the float remap GPU buffer for large frames. Attackers can supply large GBRPF32 or GBRAPF32 images or videos that, when transcoded to FFV1 with the Vulkan encoder, trigger out-of-bounds GPU memory writes causing crashes or memory corruption.