CVE-2026-45648 Windows Active Directory Domain Services Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code remotely via a stack-based buffer overflow in Windows Active Directory Domain Services.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-45648?
CVE-2026-45648 is a high-severity memory corruption vulnerability in Microsoft Windows Server 2022, published on 9 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.
Weakness: CWE-121
Which versions are affected by CVE-2026-45648?
It affects 2 products.
Products include Microsoft Windows Server 2022, Microsoft Windows Server 2025.
How do I fix CVE-2026-45648?
No fix has been published for CVE-2026-45648 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-45648 being exploited?
There is no known exploitation of CVE-2026-45648 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2022
- CVE-2022-34715 Windows Network File System Remote Code Execution Vulnerability
- CVE-2025-50171 Remote Desktop Spoofing Vulnerability
- CVE-2026-70167 Windows Domain Name Service Remote Code Execution Vulnerability
- CVE-2024-30064 Windows Kernel Elevation of Privilege Vulnerability
- CVE-2026-69858 Windows DNS Server Remote Code Execution Vulnerability
Sources
Also known as GHSA-gmq7-hvj8-4x66.