libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2022-48434",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48434",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-48434",
"modified": "2024-11-21T07:33:20.487Z",
"published": "2023-03-29T17:15:07.053Z",
"imported": "2025-10-18T14:07:17.204Z"
}
]
}