Oct 2026: Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2026-87695 Published on October 13, 2026
Microsoft Exchange Server Elevation of Privilege Vulnerability
Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Vulnerability Analysis
Weakness Type
Inclusion of Functionality from Untrusted Control Sphere
The software imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.
Products Associated with CVE-2026-87695
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 15.02.1748.055 is affected.
- Version 15.02.0.0 and below 15.02.2562.056 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.