Jul 2026: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-56645 Published on July 3, 2026
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-56645
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Affected Versions
Microsoft Edge (Chromium-based):- Version 1.0.0.0 and below 150.0.4078.48 is affected.