CVE-2025-21364 — HIGH (7.8)

Vulnerability Description

Microsoft Excel Security Feature Bypass Vulnerability

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	365 Apps	-
Microsoft	Office Long Term Servicing Channel	2024

Related Weaknesses (CWE)

CWE-502

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21364PatchVendor Advisory

FAQ

What is CVE-2025-21364?

CVE-2025-21364 is a vulnerability with a CVSS score of 7.8 (HIGH). Microsoft Excel Security Feature Bypass Vulnerability

How severe is CVE-2025-21364?

CVE-2025-21364 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-21364?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft 365 Apps, Microsoft Office Long Term Servicing Channel.