Mozilla Firefox Security Update – 06 July 2026

Mozilla has released an updated Firefox version 152.0.4 to fix a critical vulnerability.

The addressed vulnerability could allow the attacker to trigger memory corruption attacks or execute arbitrary code on the affected system.

The addressed vulnerability:

Mozilla Firefox Memory Safety Bugs Vulnerability (CVE-2026-14241):

  • CVSS: 9.8
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Consequences: Remote Code Execution
Vulnerabilities

CVE-2026-14241

Mitigations

The enterprise should deploy this patch as soon as the testing phase is completed.

Mozilla Firefox Security Advisory

References