Microsoft Exchange Server Privilege Escalation Vulnerability

Are you affected?

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• cpe microsoft/exchange server2016
• cpe microsoft/exchange server2019
• vendor Microsoft Exchange Serverversion unspecified

How to fix CVE-2024-21410

• Recommended remediation

  Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA due date Mar 7, 2024.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

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. Feb 13, 2024 · Catalog

   Detected

   Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

2. Feb 15, 2024 · CISA KEV

   Known exploited

   Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

3. Mar 7, 2024 · CISA KEV

   Remediation due

   Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

4. Jun 17, 2026 · Catalog

   Updated

   Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

Sources

• CISA KEVConfirmed exploitationCVE-2024-21410

  Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

  cisa.gov
• CVE.orgVulnerability recordCVE-2024-21410

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2024-21410

  30-day exploitation probability 12.6%

  first.org
• NIST NVDVulnerability recordCVE-2024-21410

  Microsoft Exchange Server Elevation of Privilege Vulnerability

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2024-21410

  Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

  vulncheck.com

References

• VulnCheck exploitation evidence · api.msrc.microsoft.com
• VulnCheck exploitation evidence · msrc.microsoft.com
• CISA note · msrc.microsoft.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.