Privilege Escalation in Firefox WebRender Component by Mozilla

CVE-2026-6750

What is CVE-2026-6750?

This vulnerability involves a privilege escalation issue in the WebRender component of Mozilla Firefox, allowing unauthorized access to elevated permissions. It impacts users of specific versions of Firefox, including Firefox 150 and both versions of Firefox ESR (115.35 and 140.10). If unaddressed, this vulnerability could potentially allow an attacker to execute malicious actions with higher privileges than intended.

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