CVE-2026-16401

Published Jul 21, 2026

Last updated 10 days ago

Overview

Description
Privilege escalation in the Data Loss Prevention component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Source
security@mozilla.org
NVD status
Modified
Products
firefox, thunderbird

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.8
Impact score
5.9
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

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

Social media

Hype score
Not currently trending

Configurations