Invalid Pointer and Undefined Behavior in Mozilla Firefox Notifications Component

CVE-2026-109774

What is CVE-2026-109774?

A vulnerability in the Mozilla Firefox browser's Notifications component allows for potential invalid pointer dereferences, leading to undefined behavior. This issue poses risks of stability and exposure of sensitive data. Mozilla has resolved the vulnerability in Firefox version 158, emphasizing the importance of timely updates to maintain browser security. Users are encouraged to upgrade to the latest version to safeguard against such vulnerabilities.

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