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CVE-2026-64831 is a stack-based buffer overflow in FFmpeg versions 8.0 through 8.1.2 in the Vulkan HEVC hardware decoder. When processing a crafted HEVC/H.265 bitstream, an unchecked vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS can cause stack-allocated arrays in vk_hevc_end_frame to overflow. The resulting memory corruption may overwrite adjacent stack frames and return addresses.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific FFmpeg vulnerability included in AISLE's public registry growth summary.
A stack buffer overflow in FFmpeg's Vulkan HEVC hardware decoder affecting FFmpeg 8.0 through 8.1.2. A crafted HEVC/H.265 bitstream can overflow stack-allocated arrays in vk_hevc_end_frame, potentially leading to arbitrary code execution.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.