Privilege Escalation in Firefox Application Update Component
CVE-2026-74952

Currently unrated

Key Information:

Vendor

Mozilla

Status
Vendor
CVE Published:
18 August 2026

What is CVE-2026-74952?

A privilege escalation vulnerability exists in the Application Update component of Firefox. This issue allows attackers to gain elevated privileges within the browser, potentially compromising user data and system integrity. It has been addressed in Firefox version 154, which implements necessary patches to mitigate this security concern. Users are strongly advised to update to the latest version to ensure their systems are protected against potential exploitation.

Affected Version(s)

Firefox 154

References

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tomoya Nakanishi
.