CVE-2026-87692: Microsoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 to before 15.01.2507.077; +2 more affected products

Affected technology

Microsoft Exchange Server 2016 Cumulative Update 23 · 15.01.0.0 to before 15.01.2507.077
Microsoft

Microsoft Exchange Server 2019 Cumulative Update 14 · 15.02.0.0 to before 15.02.1544.050
Microsoft

Microsoft Exchange Server Subscription Edition RTM · 15.02.0.0 to before 15.02.2562.056
Microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

An authorized attacker can elevate privileges locally. Vendor/CNA’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high.