What is CVE-2018-1999015?

CVE-2018-1999015 is a medium-severity vulnerability in Ffmpeg, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-07-23.

How severe is CVE-2018-1999015?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Ffmpeg

CVE-2018-1999015

FFmpeg before commit 5aba5b89d0b1d73164d3b81764828bb8b20ff32a contains an out of array read vulnerability in ASF_F format demuxer that can result in heap memory reading. This attack appear to be exploitable via specially crafted ASF file that has to provided as input. This vulnerability appears to have been fixed in 5aba5b89d0b1d73164d3b81764828bb8b20ff32a and later.

Vulnerability class: Buffer Overflow

Published 2018-07-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (76.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.017 · change: -0.000

Affected products

Ffmpeg

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

www.securityfocus.com/bid/104896 (VDB Entry, Third Party Advisory, vdb-entry)
github.com/FFmpeg/FFmpeg/commit/5aba5b89d0b1d73164d3b81764828bb8b20ff32a (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-1999015?: CVE-2018-1999015 is a medium-severity vulnerability in Ffmpeg, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-07-23.
How severe is CVE-2018-1999015?: Medium severity. CVSS v3 base score is 6.5 out of 10.