Microsoft Exchange Server Privilege Escalation Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
What happened
Microsoft Exchange Server Elevation of Privilege Vulnerability
CISA lists it as exploited, added 15 Feb 2024.
Does it affect you
Names Microsoft Exchange Server. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Apply the vendor patch named in this advisory.
msrc.microsoft.com - Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
cisa.gov
CISA’s notes for this entry:
Affected, as published to NVD
- ms-exchange
- Microsoft Exchange Server: exactly 2016
The record
- NVD status
- Analyzed
- Published
- 13 Feb 2024, last modified 17 Jun 2026 (NVD)
- Severity
- CVSS 3.1 base score 9.8, Critical — computed here from the vector; NVD states 9.8.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness
- CWE-287 Improper Authentication (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 15 Feb 2024; federal remediation due 07 Mar 2024. CISA entry
- Exploit probability
- EPSS 12.6%, 96th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Microsoft · Exchange Server (CISA)
References on the NVD record
- msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21410PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21410US Government Resource
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.