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.
{
"license": "CC-BY-4.0",
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64831",
"database_specific": {
"status": "Analyzed"
},
"modified": "2026-07-28T17:00:51.803Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-64831",
"imported": "2026-08-08T05:24:16.021Z",
"id": "CVE-2026-64831",
"published": "2026-07-22T17:16:58.697Z"
},
{
"html_url": "https://github.com/advisories/GHSA-mqq7-j9mq-9jwq",
"imported": "2026-08-08T05:24:21.306Z",
"modified": "2026-07-22T18:32:39Z",
"url": "https://api.github.com/advisories/GHSA-mqq7-j9mq-9jwq",
"id": "GHSA-mqq7-j9mq-9jwq",
"published": "2026-07-22T18:32:39Z"
},
{
"imported": "2026-08-08T05:24:18.760Z",
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-47748",
"modified": "2026-07-28T01:06:02Z",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-47748",
"id": "EUVD-2026-47748",
"published": "2026-07-22T16:35:43Z"
}
]
}