Vulnerability Monitor

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CVE-2025-11719

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.

Published

2025-10-14T13:15:38.287

Last Modified

2025-10-15T18:18:09.433

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

Weaknesses

Type: Primary
CWE-416
Type: Secondary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 144.0	Yes
Application	mozilla	thunderbird	< 144.0	Yes
Operating System	microsoft	windows	-	No

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1991950 Issue Tracking, Permissions Required ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-81/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-84/ Vendor Advisory ([email protected])