What is CVE-2016-2327?

CVE-2016-2327 is a high-severity vulnerability in Ffmpeg, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2016-02-12.

How severe is CVE-2016-2327?

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

Buffer overflow in Ffmpeg

CVE-2016-2327

libavcodec/pngenc.c in FFmpeg before 2.8.5 uses incorrect line sizes in certain row calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted .avi file, related to the apng_encode_frame and encode_apng functions.

Vulnerability class: Buffer Overflow

Published 2016-02-12 · 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: 0.026 (84.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Ffmpeg

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

git.videolan.org/
git.videolan.org/
www.securitytracker.com/id/1035010 (VDB Entry, Third Party Advisory, vdb-entry)
security.gentoo.org/glsa/201606-09 (vendor-advisory, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2016-2327?: CVE-2016-2327 is a high-severity vulnerability in Ffmpeg, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2016-02-12.
How severe is CVE-2016-2327?: High severity. CVSS v3 base score is 8.8 out of 10.