FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.
{
"license": "CC-BY-4.0",
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70628",
"database_specific": {
"status": "Received"
},
"id": "CVE-2026-70628",
"published": "2026-08-06T22:18:26.957Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-70628",
"imported": "2026-08-07T05:41:40.935Z",
"modified": "2026-08-06T22:18:26.957Z"
},
{
"modified": "2026-08-07T00:31:27Z",
"id": "GHSA-qw9h-2hhv-hpfr",
"published": "2026-08-07T00:31:21Z",
"url": "https://api.github.com/advisories/GHSA-qw9h-2hhv-hpfr",
"imported": "2026-08-07T05:42:30.904Z",
"html_url": "https://github.com/advisories/GHSA-qw9h-2hhv-hpfr"
},
{
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-54160",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-54160",
"published": "2026-08-06T21:24:15Z",
"id": "EUVD-2026-54160",
"imported": "2026-08-07T05:41:14.920Z",
"modified": "2026-08-06T21:26:44Z"
}
]
}