CVE-2026-0386 Windows Deployment Services Remote Code Execution Vulnerability
An unauthorized attacker can execute code over an adjacent network due to improper access control in Windows Deployment Services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0386?
CVE-2026-0386 is a high-severity missing authorization vulnerability in Microsoft Windows Server 2008, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.
Weakness: CWE-284
Which versions are affected by CVE-2026-0386?
It affects 7 products.
Products include Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2 and 1 more.
How do I fix CVE-2026-0386?
No fix has been published for CVE-2026-0386 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-0386 being exploited?
There is no known exploitation of CVE-2026-0386 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2008
Sources
Also known as GHSA-5v86-jhpq-mr3r.