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CVE-2016-4761

25
FAUCET Score

CVE-2016-4761 is a use-after-free vulnerability in WebKitGTK+ before version 2.14.0, affecting Canonical Ubuntu Linux and WebKitGTK+. This high-severity flaw, with a CVSS score of 8.8, allows remote attackers to cause a denial of service, and potentially achieve high confidentiality, integrity, and availability impacts, requiring user interaction for exploitation. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.14.0CPE matchmatch criteria
cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 68th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2016-4761Moderate

webkitgtk: use-after-free leads to DoS

Jan 22, 2020

References

openwall.com / lists/oss-security/2016/11/04/14
Mailing ListThird Party Advisory
ubuntu.com / usn/USN-3166-1
Third Party Advisory