VulnerabilityAnalyzed
CVE-2026-21527
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
MEDIUM 6.5EPSS 7.97%
Does this matter?
Lower severity and a low EPSS score (7.97%). Track it; it rarely justifies an emergency change on its own.
Description
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 7.97% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-345, CWE-451, CWE-1286
- Affected
- microsoft/exchange server · microsoft/exchange server subscription edition
- Source
- secure@microsoft.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.