VULNERABILITY INTELLIGENCE

CVE-2026-74955

CVSS score8.8 HIGH
EPSS probability0.41%
CISA KEVNot currently listed
Published2026-08-18
Last modified2026-08-21
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Privilege escalation in the Request Handling component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-269

Primary references