CVE-2016-4761: canonical ubuntu_linux Use After Free
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2016-4761
Published 22-01-2020Last modified 06-08-2024
Vulnerability summary
CVE-2016-4761 is a high (CVSS 8.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.39%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 22-01-2020PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
WebKitGTK+ before 2.14.0: A use-after-free vulnerability can allow remote attackers to cause a DoS
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.39%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.39% on 18-09-2026
18-09-202618-10-2026
EPSS score1.39%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- qtwebkit-opensource-srcAll versions (No fix recorded)
- qtwebkit-sourceAll versions (No fix recorded)
- webkit2gtk< 2.14.2-0ubuntu0.16.04.1
- webkitgtkAll versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL16.04
Webkitgtk1 product
- webkitgtk< 2.14.0
3 vendors · 6 products