Jul 2026: Microsoft Edge for Android Remote Code Execution Vulnerability
CVE-2026-58299 Published on July 3, 2026
Microsoft Edge for Android Remote Code Execution Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Edge for Android allows an unauthorized attacker to execute code over a network.
Weakness Type
What is a TOCTTOU Vulnerability?
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state. This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.
CVE-2026-58299 has been classified to as a TOCTTOU vulnerability or weakness.
Products Associated with CVE-2026-58299
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Affected Versions
Microsoft Edge (Chromium-based):- Version 1.0.0.0 and below 150.0.4078.48 is affected.