All vulnerabilities
CVE-2020-17144

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange ServerApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.4High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV
Exploit odds (EPSS)36.5%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline3 May 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 9 Dec 2020, 23:36 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

Microsoft Exchange Server improperly validates cmdlet arguments which allow an attacker to perform remote code execution.

Text from CVE List

Affected versions 1

  • Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 31affected: all versions before publicationCVE List

References 4