CVE-2022-41040

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVE-2022-41040 is fixed in 5 products on 1 platform, first by KB5019758, released November 8, 2022. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on September 30, 2022, with known ransomware use. Patch Radar priority: Patch now.

Patch nowCISA KEVKnown ransomware use

CVSS

8.8

Critical

Exploitation

Exploited

Reported by the vendor

CISA KEV

Sep 30, 2022

Federal due date Oct 21, 2022. Known ransomware use

EPSS

0.9996

99th percentile

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft Exchange Server 2013 Cumulative Update 23	KB5019758	Nov 8, 2022
Microsoft Exchange Server 2016 Cumulative Update 22	KB5019758	Nov 8, 2022
Microsoft Exchange Server 2016 Cumulative Update 23	KB5019758	Nov 8, 2022
Microsoft Exchange Server 2019 Cumulative Update 11	KB5019758	Nov 8, 2022
Microsoft Exchange Server 2019 Cumulative Update 12	KB5019758	Nov 8, 2022

Details

Published
September 30, 2022
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41040

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