Untrusted Pointer Dereference in Microsoft products - CVE-2025-62561

 

Untrusted Pointer Dereference in Microsoft products - CVE-2025-62561

Published: December 9, 2025


Vulnerability identifier: #VU119484
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-62561
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to untrusted pointer dereference in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.


Affected software

Office Online Server
Microsoft 365 Apps for Enterprise
Microsoft Excel
Microsoft Office
Microsoft Office LTSC

How to mitigate CVE-2025-62561

Install updates from vendor's website.


External References

Related Security Bulletins