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Servers and applications

CVE-2024-21410

Microsoft Exchange Server Elevation of Privilege Vulnerability

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 15 Feb 2024.

Severity
Critical 9.8
Published
13 Feb 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server
  • Version 2016-cumulative_update_23
  • Version 2019-cumulative_update_13
  • Version 2019-cumulative_update_14

Known exploited

CISA name
Microsoft Exchange Server Privilege Escalation Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
7 Mar 2024
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-21410
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-21410