Bug 2506500 (CVE-2026-64831) - CVE-2026-64831 ffmpeg: FFmpeg: Arbitrary code execution via crafted HEVC/H.265 bitstream
Summary: CVE-2026-64831 ffmpeg: FFmpeg: Arbitrary code execution via crafted HEVC/H.26...
Keywords:
Status: NEW
Alias: CVE-2026-64831
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-23 15:02 UTC by OSIDB Bzimport
Modified: 2026-07-24 11:42 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-07-23 15:02:31 UTC 
FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.
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