What is CVE-2019-13312?

CVE-2019-13312 is a high-severity vulnerability in Ffmpeg, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2019-07-05.

How severe is CVE-2019-13312?

High severity. CVSS v3 base score is 8.8 out of 10.

Out-of-bounds Read in Ffmpeg

CVE-2019-13312

block_cmp() in libavcodec/zmbvenc.c in FFmpeg 4.1.3 has a heap-based buffer over-read.

Vulnerability class: Buffer Overflow

Published 2019-07-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Ffmpeg — versions 4.1.3

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

trac.ffmpeg.org/ticket/7980 (Vendor Advisory)
security.gentoo.org/glsa/202003-65 (vendor-advisory)
usn.ubuntu.com/4431-1/ (vendor-advisory)
security.gentoo.org/glsa/202007-58 (vendor-advisory)

Frequently asked questions

What is CVE-2019-13312?: CVE-2019-13312 is a high-severity vulnerability in Ffmpeg, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2019-07-05.
How severe is CVE-2019-13312?: High severity. CVSS v3 base score is 8.8 out of 10.