6.5
Medium
CVE-2026-21527 User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized…
Description
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Exchange Server Subscription Edition RTM 15.02 | 15.02.0.0 → < 15.02.2562.037 | 15.02.2562.037 |
| Microsoft Exchange Server 2016 Cumulative Update 23 15.01 | 15.01.0.0 → < 15.01.2507.066 | 15.01.2507.066 |
| Microsoft Exchange Server 2019 Cumulative Update 15 15.02 | 15.02.0.0 → < 15.02.1748.043 | 15.02.1748.043 |
| Microsoft Exchange Server 2019 Cumulative Update 14 15.02 | 15.02.0.0 → < 15.02.1544.039 | 15.02.1544.039 |
Other CVEs of Microsoft Exchange Server Subscription Edition RTM
The 46 CVEs of Microsoft Exchange Server Subscription Edition RTM →
CVE-2026-87695
Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to…
7.8
High
CVE-2026-87692
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges…
7.8
High
CVE-2026-77910
Incorrect authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network
8.8
High
CVE-2026-87696
Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate…
7.5
High