What is the severity of CVE-2025-21361?

CVE-2025-21361 has been categorized with a high severity rating due to its potential for remote code execution.

How do I fix CVE-2025-21361?

To fix CVE-2025-21361, users should apply the latest patches provided by Microsoft for affected versions of Outlook and Office LTSC for Mac.

Which Microsoft products are affected by CVE-2025-21361?

CVE-2025-21361 affects Microsoft Office LTSC for Mac 2024, Microsoft Office LTSC for Mac 2021, and Outlook for Mac.

What happens if CVE-2025-21361 is exploited?

Exploitation of CVE-2025-21361 could allow an attacker to execute arbitrary code on the affected system.

How can I check if my version is affected by CVE-2025-21361?

To determine if your version is affected by CVE-2025-21361, verify the version of Outlook and Office LTSC for Mac against the listed affected versions.

Vulnerability/
CVE-2025-21361

high

7.8

CWE

641

EPSS

0.050%

14/1/2025

21/2/2025

CVE-2025-21361: Microsoft Outlook Remote Code Execution Vulnerability

First published: Tue Jan 14 2025(Updated: )

Microsoft Outlook Remote Code Execution Vulnerability

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Office Long Term Servicing Channel for Mac		fix available externally
Microsoft Office Long Term Servicing Channel for Mac		fix available externally
Microsoft Outlook		fix available externally
Microsoft Office	=2021
Microsoft Office	=2024
Microsoft Outlook	<16.93

Remedy

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21361

Never miss a vulnerability like this again

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21361 (Advisory)

Frequently Asked Questions

What is the severity of CVE-2025-21361?
CVE-2025-21361 has been categorized with a high severity rating due to its potential for remote code execution.
How do I fix CVE-2025-21361?
To fix CVE-2025-21361, users should apply the latest patches provided by Microsoft for affected versions of Outlook and Office LTSC for Mac.
Which Microsoft products are affected by CVE-2025-21361?
CVE-2025-21361 affects Microsoft Office LTSC for Mac 2024, Microsoft Office LTSC for Mac 2021, and Outlook for Mac.
What happens if CVE-2025-21361 is exploited?
Exploitation of CVE-2025-21361 could allow an attacker to execute arbitrary code on the affected system.
How can I check if my version is affected by CVE-2025-21361?
To determine if your version is affected by CVE-2025-21361, verify the version of Outlook and Office LTSC for Mac against the listed affected versions.

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source/Microsoft
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