What is CVE-2015-7801?

CVE-2015-7801 is a high-severity vulnerability in Optipng Project. CVSS score: 8.8/10. Published 2016-04-20.

How severe is CVE-2015-7801?

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

Vulnerability in Optipng Project

CVE-2015-7801

Use-after-free vulnerability in OptiPNG 0.6.4 allows remote attackers to execute arbitrary code via a crafted PNG file.

Published 2016-04-20 · 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: 0.054 (92.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.054 · newest: 0.054 · change: 0.000

Affected products

Optipng Project
Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10

References

www.openwall.com/lists/oss-security/2015/09/16/1 (mailing-list, Exploit)
bugzilla.redhat.com/show_bug.cgi
www.ubuntu.com/usn/USN-2951-1 (vendor-advisory)

Frequently asked questions

What is CVE-2015-7801?: CVE-2015-7801 is a high-severity vulnerability in Optipng Project. CVSS score: 8.8/10. Published 2016-04-20.
How severe is CVE-2015-7801?: High severity. CVSS v3 base score is 8.8 out of 10.