Type Confusion in Windows Server - CVE-2025-21326
Published: January 15, 2025
Vulnerability identifier: #VU102763
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-21326
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error in Internet Explorer. A remote attacker can trick a victim to open a specially crafted file, trigger a type confusion error and execute arbitrary code on the target system.
Affected software
Windows Server
How to mitigate CVE-2025-21326
Install updates from vendor's website.
Windows Server - addressed in versions 2016 10.0.14393.7785, 2022 23H2 10.0.25398.1369, 2025 10.0.26100.2894