CVE-2025-11719 - CVE House
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Status published Unknown CVE-2025-11719

Use-after-free caused by the native messaging web extension API on Windows

Vulnerability Description

Starting in Thunderbird 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 was fixed in Firefox 144 and Thunderbird 144.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Filip Štamcar

References

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Affected Vendor

Affected Software

Firefox, Thunderbird
Vulnerable Versions:
144

Timeline

Official Publish: October 14th, 2025
Last Modified: April 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.