FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_floodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinit_filter 0. When config_input() allocates the points traversal stack based on initial frame dimensions and a subsequent larger frame is processed, filter_frame() performs flood-fill neighbor pushes beyond the original allocation boundary, resulting in heap corruption and process crash with potential for code execution depending on heap layout and process hardening.
{
"sources": [
{
"modified": "2026-08-07T00:20:32.650Z",
"database_specific": {
"status": "Analyzed"
},
"id": "CVE-2026-65705",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65705",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-65705",
"imported": "2026-08-07T05:41:14.663Z",
"published": "2026-07-23T20:17:22.120Z"
},
{
"modified": "2026-07-23T21:31:09Z",
"published": "2026-07-23T21:31:02Z",
"id": "GHSA-gf7r-r5xq-r3hm",
"url": "https://api.github.com/advisories/GHSA-gf7r-r5xq-r3hm",
"imported": "2026-08-07T05:41:16.863Z",
"html_url": "https://github.com/advisories/GHSA-gf7r-r5xq-r3hm"
},
{
"modified": "2026-07-28T01:06:13Z",
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-48372",
"id": "EUVD-2026-48372",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-48372",
"imported": "2026-08-07T05:41:15.493Z",
"published": "2026-07-23T19:00:36Z"
}
],
"license": "CC-BY-4.0"
}