VulnerabilityAnalyzed
CVE-2020-17144
Microsoft Exchange Server Remote Code Execution Vulnerability
KEVHIGH 8.4EPSS 36.5%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Microsoft Exchange Remote Code Execution Vulnerability
- CVSS 3.1
- 8.4 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 36.51% probability · 98th percentile
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-502
- Affected
- microsoft/exchange server
- Source
- secure@microsoft.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-17144
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17144Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17144Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17144US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.