Aug 2026: Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2026-62913 Published on August 11, 2026
Microsoft Exchange Server Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized 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-2026-62913
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Affected Versions
Microsoft Exchange Server 2016 Cumulative Update 23:- Version 15.01.0.0 and below 15.01.2507.072 is affected.
- Version 15.02.0.0 and below 15.02.1544.044 is affected.
- Version 15.02.0.0 and below 15.02.1748.049 is affected.
- Version 15.02.0.0 and below 15.02.2562.046 is affected.