Oct 2026: Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2026-87692 Published on October 13, 2026
Microsoft Exchange Server Elevation of Privilege Vulnerability
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2026-87692 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2026-87692
Want to know whenever a new CVE is published for Microsoft products? stack.watch will email you.
Affected Versions
Microsoft Exchange Server 2016 Cumulative Update 23:- Version 15.01.0.0 and below 15.01.2507.077 is affected.
- Version 15.02.0.0 and below 15.02.1544.050 is affected.
- Version 15.02.0.0 and below 15.02.2562.056 is affected.