Vulnerability in Microsoft Exchange Server 2013 Cumulative Update 23
CVE-2022-21969
Microsoft Exchange Server Remote Code Execution Vulnerability
EPSS: 0.021 (84.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C.
Affected products
- Microsoft Exchange Server 2013 Cumulative Update 23 — versions 15.00.0
- Microsoft Exchange Server 2016 Cumulative Update 21 — versions 15.01.0
- Microsoft Exchange Server 2016 Cumulative Update 22 — versions 15.0.0
- Microsoft Exchange Server 2019 Cumulative Update 10 — versions 15.02.0
- Microsoft Exchange Server 2019 Cumulative Update 11 — versions 15.02.0
Public proof-of-concept exploits
References
- Microsoft Exchange Server Remote Code Execution Vulnerability (vendor-advisory)
Frequently asked questions
- What is CVE-2022-21969?
- CVE-2022-21969 is a critical-severity vulnerability in Microsoft Exchange Server 2013 Cumulative Update 23. CVSS score: 9.0/10. Published 2022-01-11.
- How severe is CVE-2022-21969?
- Critical severity. CVSS v3 base score is 9.0 out of 10.
- Is CVE-2022-21969 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.