CVE-2023-23397

KEV

Microsoft Office Outlook Privilege Escalation Vulnerability

Vendor / Project: Microsoft
Product: Office
Date added: Mar 14, 2023
Due date: Apr 4, 2023
Known ransomware use: Unknown
CWEs: CWE-294

Description

Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.

Required action

Apply updates per vendor instructions.

Notes

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/,
https://nvd.nist.gov/vuln/detail/CVE-2023-23397