Use-after-free in Microsoft products - CVE-2025-62559
Published: December 9, 2025
Vulnerability identifier: #VU119495
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-2025-62559
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Microsoft Word. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the target system.
Affected software
Microsoft 365 Apps for Enterprise
Microsoft Word
Microsoft Office
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
Microsoft Office LTSC
Microsoft Word
Microsoft Office
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
Microsoft Office LTSC
How to mitigate CVE-2025-62559
Install updates from vendor's website.