Stack-based buffer overflow in Windows Server - CVE-2026-45648
Published: June 11, 2026
Vulnerability identifier: #VU134358
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-45648
CWE-ID: CWE-121
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 boundary error in Windows Active Directory Domain Services. A remote user can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Windows Server
How to mitigate CVE-2026-45648
Install updates from vendor's website.
Windows Server - addressed in versions 2004 10.0.19045.7417, 2022 10.0.20348.5256, 2025 10.0.26100.32995