Out-of-Bounds Affecting webkitgtk package, versions [,2.50.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-WEBKITGTK-13554401
- published15 Oct 2025
- disclosed13 Oct 2025
- creditUnknown
Introduced: 13 Oct 2025
NewCVE-2025-43343 (opens in a new tab)How to fix?
Upgrade webkitgtk to version 2.50.1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds via the memory handling process. An attacker can execute arbitrary code or cause a process crash by tricking a user into processing or loading malicious web content.
Note:
This is only exploitable if the affected system is running a graphical interface and the relevant packages are installed and used to process untrusted web content, such as via GNOME. In some cases, exploitation may be possible from the local network without user interaction.
##Workaround
This vulnerability can be mitigated by avoiding the processing or loading of untrusted web content, or by removing packages that require WebKitGTK4 if feasible. WebKitGTK3 can also be removed without impacting system functionality.