CVE-2023-25362: webkitgtk Use After Free
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2023-25362DEBIAN-CVE-2023-25362
Published 02-03-2023Last modified 07-03-2025
Vulnerability summary
CVE-2023-25362 is a high (CVSS 8.8) Use After Free vulnerability in webkitgtk. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.3% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.97%
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 9 · Related 4Timeline
- 02-03-2023PublishedVulnerability first disclosed.
- 07-03-2025Last modifiedVulnerability information updated.
Description
A use-after-free vulnerability in WebCore::RenderLayer::repaintBlockSelectionGaps in WebKitGTK before 2.36.8 allows attackers to execute code remotely.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.97%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
0.00 pp
From 0.97% on 18-09-2026
18-09-202618-10-2026
EPSS score0.97%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- webkit2gtk< 2.38.0-1
- wpewebkit< 2.38.0-1
Ubuntu1 product
- webkitgtkAll versions (No fix recorded)
Webkitgtk1 product
- webkitgtk< 2.36.8
3 vendors · 4 products
References
6 links- bugs.webkit.org/show_bug.cgi?id=244802Vendor Advisory
- www.openwall.com/lists/oss-security/2023/04/21/3Mailing List
- security.gentoo.org/glsa/202305-32Vendor Advisory
