Microsoft Exchange Server Remote Code Execution Vulnerability

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Dec 9, 2020 · Catalog

   Detected

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

2. Nov 3, 2021 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. May 3, 2022 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jun 16, 2026 · Catalog

   Updated

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

Affected

• cpe microsoft/exchange server2010
• vendor Microsoft Exchange Serverversion unspecified

Sources

• CISA KEVConfirmed exploitationCVE-2020-17144

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

  cisa.gov
• CVE.orgVulnerability recordCVE-2020-17144

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2020-17144

  30-day exploitation probability 36.5%

  first.org
• NIST NVDVulnerability recordCVE-2020-17144

  Microsoft Exchange Remote Code Execution Vulnerability

  nvd.nist.gov

References

• Patch · msrc.microsoft.com
• CISA note · nvd.nist.gov
• Patch · portal.msrc.microsoft.com
• US Government Resource · cisa.gov