Untrusted Pointer Dereference in Microsoft products - CVE-2025-21354
Published: January 15, 2025
Vulnerability identifier: #VU102798
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2025-21354
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Office Online Server
Microsoft Office
Microsoft 365 Apps for Enterprise
Microsoft Office LTSC
Office Online Server
Microsoft Office
Microsoft 365 Apps for Enterprise
Microsoft Office LTSC
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target 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.
How to mitigate CVE-2025-21354
Install updates from vendor's website.