Buffer overflow in WebKitGTK+ and WPE WebKit - CVE-2025-31223
Published: May 12, 2025 / Updated: March 20, 2026
Vulnerability identifier: #VU108956
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-31223
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebKitGTK
Affected software:
WebKitGTK+
WPE WebKit
WebKitGTK+
WPE WebKit
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in WebKit engine. A remote attacker can trick the victim into visiting a specially crafted webpage, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2025-31223
Install updates from vendor's website.