CVE-2026-88130 Role: DNS Server Denial of Service Vulnerability
An authorized attacker can cause a denial of service in the Windows Server DNS component via an out-of-bounds read.
- 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-2026-88130?
CVE-2026-88130 is a medium-severity denial of service vulnerability in Microsoft Windows Server 2012, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
Weakness: CWE-125
Which versions are affected by CVE-2026-88130?
It affects 5 products.
Products include Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025.
How do I fix CVE-2026-88130?
No fix has been published for CVE-2026-88130 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-88130 being exploited?
There is no known exploitation of CVE-2026-88130 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2012
- CVE-2025-59287 Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data
- CVE-2026-69595 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-78445 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-41089 Windows Netlogon Remote Code Execution Vulnerability
- CVE-2024-43639 Windows KDC Proxy Remote Code Execution Vulnerability
Sources
Also known as GHSA-24wv-87rv-c68f.