Vulnerability · Published Jan 11, 2022 · Assigned by microsoft

CVE-2022-21846Microsoft Exchange Server Remote Code Execution Vulnerability

Critical 9.0

In plain English

A critical-severity security flaw in Microsoft Exchange Server 2013 Cumulative Update 23 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).

Severity (CVSS 3.1)9.0Critical
Exploit odds (30 days)1.1%top 34.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Microsoft Exchange Server 2016 Cumulative Update 22 15.0.0 – before 15.01.2375.018
Microsoft Microsoft Exchange Server 2019 Cumulative Update 11 15.02.0 – before 15.02.0986.015
Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 15.00.0 – before 15.00.1497.028
Microsoft Microsoft Exchange Server 2016 Cumulative Update 21 15.01.0 – before 15.01.2308.021
Microsoft Microsoft Exchange Server 2019 Cumulative Update 10 15.02.0 – before 15.02.0922.020

References