Vulnerability in Microsoft Exchange Server 2013 Cumulative Update 23
CVE-2020-17142
Microsoft Exchange Remote Code Execution Vulnerability
EPSS: 0.009 (75.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C.
Affected products
- Microsoft Exchange Server 2013 Cumulative Update 23 — versions 15.00.0
- Microsoft Exchange Server 2016 Cumulative Update 17 — versions 15.01.0
- Microsoft Exchange Server 2016 Cumulative Update 18 — versions 15.01.0
- Microsoft Exchange Server 2019 Cumulative Update 6 — versions 15.02.0
- Microsoft Exchange Server 2019 Cumulative Update 7 — versions 15.02.0
Public proof-of-concept exploits
References
- Microsoft Exchange Remote Code Execution Vulnerability (vendor-advisory)
Frequently asked questions
- What is CVE-2020-17142?
- CVE-2020-17142 is a critical-severity vulnerability in Microsoft Exchange Server 2013 Cumulative Update 23. CVSS score: 9.1/10. Published 2020-12-09.
- How severe is CVE-2020-17142?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2020-17142 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.