CVE-2023-23397: Microsoft Outlook Elevation of Privilege Vulnerability
First published: Tue Mar 14 2023(Updated: )
Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Outlook 2016 | ||
| Microsoft Office 2019 for 64-bit editions | ||
| Microsoft Outlook 2016 | ||
| Microsoft Outlook 2013 | ||
| Microsoft Office LTSC 2021 for 64-bit editions | ||
| Microsoft Office 2019 for 32-bit editions | ||
| Microsoft 365 Apps for Enterprise | ||
| Microsoft Outlook 2013 RT | ||
| Microsoft Office LTSC 2021 for 32-bit editions | ||
| Microsoft 365 Apps for Enterprise | ||
| Microsoft Outlook 2013 | ||
| Microsoft Office | ||
| Microsoft 365 Apps | ||
| Microsoft Office | =2019 | |
| Microsoft Office | =2021 | |
| Microsoft Outlook | =2013-sp1 | |
| Microsoft Outlook | =2013-sp1 | |
| Microsoft Outlook | =2016 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-23397?
CVE-2023-23397 is a privilege escalation vulnerability in Microsoft Office Outlook.
What is the severity of CVE-2023-23397?
CVE-2023-23397 has a severity level of critical.
How does CVE-2023-23397 affect Microsoft Office Outlook?
CVE-2023-23397 allows for an NTLM Relay attack against another service to authenticate as the user.
Which versions of Microsoft Office are affected by CVE-2023-23397?
Microsoft Office versions including Office 2019, Office 365 Apps for Enterprise, and Office LTSC 2021 are affected by CVE-2023-23397.
How can I mitigate CVE-2023-23397 in Microsoft Office Outlook?
To mitigate CVE-2023-23397, apply the security updates provided by Microsoft for the affected versions of Microsoft Office Outlook.
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