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CVE-2024-21410: Microsoft Exchange Server Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2024-21410
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

CSIRTS triage

vendor: Microsoftproduct: Exchange ServerPrivilege escalation
What
An unspecified vulnerability allows for privilege escalation.
Who is affected
Deployments of Microsoft Exchange Server are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security updates from Microsoft.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2024-02-15
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2024-21410

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-21410coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Exchange Server

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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