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CVE-2020-17142
Microsoft Exchange Remote Code Execution Vulnerability
Critical9.1EPSS 3.4%
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
Microsoft Exchange Remote Code Execution Vulnerability
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | Critical9.1 | 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 |
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.4% · top 11% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
- Remote Code Execution
Affected products
Microsoft · Microsoft Exchange Server 2013 Cumulative Update 23
- affected 15.00.0 – < publication
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 17
- affected 15.01.0 – < publication
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 18
- affected 15.01.0 – < publication
Microsoft · Microsoft Exchange Server 2019 Cumulative Update 6
- affected 15.02.0 – < publication
Microsoft · Microsoft Exchange Server 2019 Cumulative Update 7
- affected 15.02.0 – < publication
References (2)
- Microsoft Exchange Remote Code Execution Vulnerability (opens in a new tab)vendor-advisorypatch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17142 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-17142)Record last updated .