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Servers and applications

CVE-2019-11338

libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.

Severity
High 8.8
Published
19 Apr 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.4% in the next 30 daysHigher than 83% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Version 3.4
  • Version 4.1.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-11338
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-11338