Sep 2026: Microsoft Office Access Remote Code Execution Vulnerability
CVE-2026-69477 Published on September 8, 2026
Microsoft Office Access Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.
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-2026-69477
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Affected Versions
Microsoft 365 Apps for Enterprise:- Version 16.0.1 and below 16.0.20326.20138 is affected.
- Version 16.0.0 and below 16.0.5569.1000 is affected.
- Version 16.0.0 and below 16.0.5569.1000 is affected.
- Version 19.0.0 and below 16.0.10417.20207 is affected.
- Version 16.0.1 and below 16.0.14334.20906 is affected.
- Version 16.0.0 and below 16.0.17932.20976 is affected.