CVE-2026-64831 - FFmpeg 8.0 - 8.1.2 Stack Buffer Overflow in Vulkan HEVC Decoder

CVE-2026-64831 - FFmpeg 8.0 - 8.1.2 Stack Buffer Overflow in Vulkan HEVC Decoder

https://cvefeed.io/rssfeed/latest.atom / Wed, 07/22/2026 - 22:06
CVE ID :CVE-2026-64831
Published : July 22, 2026, 5:16 p.m. | 1 hour, 33 minutes ago
Description :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.
Severity: 8.8 | HIGH
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