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vuln-cve/data/2026/65xxx/CVE-2026-65704.json
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{
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"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-65704",
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"state": "PUBLISHED",
"assignerShortName": "VulnCheck",
"dateReserved": "2026-07-22T20:26:09.981Z",
"datePublished": "2026-07-23T18:55:41.842Z",
"dateUpdated": "2026-07-28T01:06:12.410Z"
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"dateUpdated": "2026-07-28T01:06:12.410Z"
},
"title": "FFmpeg 8.1.2 Out-of-Bounds Write via TY Demuxer and Shorten Decoder",
"descriptions": [
{
"lang": "en",
"value": "FFmpeg through 8.1.2 contains an out-of-bounds write vulnerability that allows attackers to cause heap corruption by supplying a crafted ffconcat file processed with the -safe 0 flag. The TY demuxer's demux_audio() function decrements packet size without bounds checking, producing a negative size value that is passed to memcpy() in shorten_decode_frame(), where conversion to size_t wraps the value to near SIZE_MAX and triggers reads beyond the source allocation and writes far beyond the Shorten decoder's bitstream buffer."
}
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"datePublic": "2026-07-13T00:00:00.000Z",
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"description": "Out-of-bounds Write",
"type": "CWE"
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"cweId": "CWE-191",
"description": "Integer Underflow (Wrap or Wraparound)",
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"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
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"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
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"Safety": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"baseScore": 7.3,
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"references": [
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"name": "Pull Request",
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"url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/de771bd52774a52d45b0e2c82e56995a1ef40df7",
"name": "Patch Commit",
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},
{
"url": "https://www.vulncheck.com/advisories/ffmpeg-out-of-bounds-write-via-ty-demuxer-and-shorten-decoder",
"tags": [
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]
}
],
"credits": [
{
"lang": "en",
"value": "Adrian Junge (vurlo)",
"type": "finder"
}
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"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
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"adp": [
{
"metrics": [
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"content": {
"timestamp": "2026-07-23T00:00:00+00:00",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3",
"id": "CVE-2026-65704"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"dateUpdated": "2026-07-24T03:56:30.065Z"
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}