VULNERABILITY INTELLIGENCE

CVE-2026-6763

CVSS score6.5 MEDIUM
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-04-21
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Weakness classification

  • CWE-693: Protection Mechanism Failure

Primary references