CVE-2025-21354

Microsoft Excel Remote Code Execution Vulnerability

Description

Microsoft Excel Remote Code Execution Vulnerability

Category

8.4
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.51%
Vendor Advisory microsoft.com
Affected: Microsoft Office Online Server
Affected: Microsoft Microsoft Office 2019
Affected: Microsoft Microsoft 365 Apps for Enterprise
Affected: Microsoft Microsoft Office LTSC for Mac 2021
Affected: Microsoft Microsoft Office LTSC 2021
Affected: Microsoft Microsoft Office LTSC 2024
Affected: Microsoft Microsoft Office LTSC for Mac 2024
Published at:
Updated at:

References

Link Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21354 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-21354?
CVE-2025-21354 has been scored as a high severity vulnerability.
How to fix CVE-2025-21354?
To fix CVE-2025-21354, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21354 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21354 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21354?
CVE-2025-21354 affects Microsoft Office Online Server, Microsoft Microsoft Office 2019, Microsoft Microsoft 365 Apps for Enterprise, Microsoft Microsoft Office LTSC for Mac 2021, Microsoft Microsoft Office LTSC 2021, Microsoft Microsoft Office LTSC 2024, Microsoft Microsoft Office LTSC for Mac 2024.
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