Bug 2403764 (CVE-2025-11719) - CVE-2025-11719 thunderbird: firefox: Use-after-free caused by the native messaging web extension API on Windows
Summary: CVE-2025-11719 thunderbird: firefox: Use-after-free caused by the native mess...
Keywords:
Status: NEW
Alias: CVE-2025-11719
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-14 13:01 UTC by OSIDB Bzimport
Modified: 2026-06-29 17:56 UTC (History)
7 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-10-14 13:01:46 UTC 
Starting in Firefox 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free memory corruption. This vulnerability affects Firefox < 144 and Thunderbird < 144.
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