Sandbox Escape Vulnerability in Firefox Remote Settings Client Component

CVE-2026-75874

What is CVE-2026-75874?

A sandbox escape vulnerability was identified in the Remote Settings Client component of Firefox, allowing potential unauthorized actions outside the intended security environment. This flaw, which has been addressed in Firefox version 154, highlights the importance of maintaining up-to-date software to safeguard against emerging threats. Users are advised to update their Firefox application to the latest version to ensure protection against this vulnerability.

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