CVE-2023-21761 json
Microsoft Exchange Server Information Disclosure Vulnerability
published 2023-01-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25928
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
Microsoft Exchange Server Information Disclosure Vulnerability
Patch / fix
- Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.017
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 11 15.02.0986.037
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 12 15.02.1118.021
Exploit prediction
1.64% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Microsoft Microsoft Exchange Server 2016 Cumulative Update 23
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 11
- Microsoft Microsoft Exchange Server 2019 Cumulative Update 12
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
- Technology feeds
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2023-21761
vendor-advisory
Sources
- CVE List CVE-2023-21761
- NVD CVE-2023-21761
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.