CVE-2023-23397

Microsoft Outlook Elevation of Privilege Vulnerability

CVE-2023-23397 is fixed in 5 products on 1 platform, first by KB5002265, released March 14, 2023. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on March 14, 2023. Patch Radar priority: Patch now.

Patch nowCISA KEV

CVSS

9.8

Critical

Exploitation

Exploited

Reported by the vendor

CISA KEV

Mar 14, 2023

Federal due date Apr 4, 2023

EPSS

0.9716

99th percentile

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft Outlook 2013 RT Service Pack 1	KB5002265	Mar 14, 2023
Microsoft Outlook 2013 Service Pack 1 (32-bit editions)	KB5002265	Mar 14, 2023
Microsoft Outlook 2013 Service Pack 1 (64-bit editions)	KB5002265	Mar 14, 2023
Microsoft Outlook 2016 (32-bit edition)	KB5002254	Mar 14, 2023
Microsoft Outlook 2016 (64-bit edition)	KB5002254	Mar 14, 2023

Details

Published
March 14, 2023
Weakness
Improper Input Validation
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397

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