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CVE-2026-2780

CRITICAL CVSS: 9.8 Published: 2026-02-24 Modified: 2026-06-17

Description

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Affected Platforms

Mozilla FirefoxMozilla Thunderbird

Weakness Type

NVD-CWE-noinfo, CWE-269

References