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CVE-2026-66040 FFmpeg Heap Out-of-Bounds Write via PNG/APNG eXIf Encoder

🗓️ 24 Jul 2026 19:46:25Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

FFmpeg heap out-of-bounds write in PNG APNG eXIf encoder via crafted eXIf chunk causes heap corruption.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-66040
24 Jul 202619:46
attackerkb
Circl
CVE-2026-66040
24 Jul 202622:00
circl
CVE
CVE-2026-66040
24 Jul 202619:46
cve
Debian CVE
CVE-2026-66040
24 Jul 202619:46
debiancve
EUVD
EUVD-2026-48742
24 Jul 202619:46
euvd
NVD
CVE-2026-66040
24 Jul 202620:18
nvd
OSV
DEBIAN-CVE-2026-66040
24 Jul 202620:18
osv
OSV
ECHO-191B-44FE-7772
25 Jul 202620:56
osv
Positive Technologies
PT-2026-64416
24 Jul 202600:00
ptsecurity
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-66040
25 Jul 202600:00
nessus
Rows per page
[
  {
    "defaultStatus": "affected",
    "vendor": "FFmpeg",
    "product": "FFmpeg",
    "repo": "https://code.ffmpeg.org/FFmpeg/FFmpeg",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "8.1.2"
      },
      {
        "status": "unaffected",
        "version": "b506fafec9a19fcbc2be5271875fd4a63d6615bc",
        "versionType": "git"
      }
    ]
  }
]

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24 Jul 2026 19:46Current
CVSS 48.7
CVSS 3.18.8
EPSS0.00546
29