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CVE-2026-6761 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: April 22, 2026

Mozilla Firefox - Privilege Escalation

Published: April 21, 2026Updated: April 22, 2026Remote Exploitable

Overview

Mozilla Firefox before 150 and Firefox ESR before 140.10 contain a privilege escalation vulnerability in the Networking component, letting attackers escalate privileges, exploit requires unspecified conditions.

Severity & Score

Severity: High
CVSS Score: 8.8

Impact

Attackers can escalate their privileges, potentially gaining unauthorized access or control.

Mitigation

Update to Firefox 150 or Firefox ESR 140.10 or later.

Details

CVE ID
CVE-2026-6761
Severity
High
CVSS Score
8.8
Type
broken_access_control
Status
unconfirmed

CWE

  • CWE-269

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H