#VU107993 Heap-based buffer overflow in Windows and Windows Server - CVE-2025-26634

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Main Vulnerability Database Vulnerabilities #VU107993

#VU107993 Heap-based buffer overflow in Windows and Windows Server - CVE-2025-26634

Published: April 28, 2025


Vulnerability identifier: #VU107993
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-26634
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Windows
Windows Server
Software vendor:
Microsoft

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to a boundary error in Windows Core Messaging. A remote user can send a specially crafted request to the system, trigger a heap-based buffer overflow and execute arbitrary code with SYSTEM privileges.


Remediation

Install updates from vendor's website.

External links