Microsoft Exchange Server Privilege Escalation Vulnerability

CRITICAL 9.8EXPLOITED (CISA KEV)CVE-2024-21410 · Published 13/02/2024 · updated 17/06/2026

Microsoft Exchange Server Privilege Escalation Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 15/02/2024. Patch affected systems as an emergency.

In short

CVE-2024-21410 is a CRITICAL (CVSS 9.8) vulnerability affecting exchange server (microsoft).
Exploited in the wild: CISA added it to the KEV catalog on 15/02/2024.
Chance of exploitation in the next 30 days (EPSS): 12.7%, higher than 96.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
exchange server microsoft	`= 2016= 2019`	No fix yet

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21410 · Patch
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2024-21410

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In short

CVE-2024-21410 is a CRITICAL (CVSS 9.8) vulnerability affecting exchange server (microsoft).

Exploited in the wild: CISA added it to the KEV catalog on 15/02/2024.

Chance of exploitation in the next 30 days (EPSS): 12.7%, higher than 96.3% of all vulnerabilities.

No patched version is listed yet: follow the vendor's advisory in References.

Package

Affected versions

Patched versions

exchange server

microsoft

= 2016= 2019

No fix yet

More vulnerabilities in exchange server

See all →