What is CVE-2016-4761?

CVE-2016-4761 is a high-severity vulnerability in Webkitgtk Webkitgtk\+, classified under Use After Free. CVSS score: 8.8/10. Published 2020-01-22.

How severe is CVE-2016-4761?

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

Use After Free in Webkitgtk Webkitgtk\+

CVE-2016-4761

WebKitGTK+ before 2.14.0: A use-after-free vulnerability can allow remote attackers to cause a DoS

Vulnerability class: Use-After-Free

Published 2020-01-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Webkitgtk Webkitgtk\+
Webkitgtk+ — versions before 2.14.0
Canonical Ubuntu Linux — versions 16.04

Weakness classification (CWE)

CWE-416 — Use After Free

References

www.openwall.com/lists/oss-security/2016/11/04/14 (Mailing List, Third Party Advisory)
www.ubuntu.com/usn/USN-3166-1 (Third Party Advisory)

Frequently asked questions

What is CVE-2016-4761?: CVE-2016-4761 is a high-severity vulnerability in Webkitgtk Webkitgtk\+, classified under Use After Free. CVSS score: 8.8/10. Published 2020-01-22.
How severe is CVE-2016-4761?: High severity. CVSS v3 base score is 8.8 out of 10.