CVE-2026-69813: Windows DNS Server Remote Code Execution Vulnerability
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
Other sources
Windows DNS Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
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Fixed in 6.2.9200.26349Patch KB5123065 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882
Event History
Frequently Asked Questions
Which systems are exposed to this issue?
The affected software list includes Microsoft Windows 10 and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025. Exposure is relevant where the Windows DNS Server component is present and reachable over the network.
Does exploitation require authentication or user interaction?
No. The supplied vector indicates no privileges are required and no user interaction is needed; the attack vector is network-based.
How difficult is exploitation expected to be?
The attack complexity is rated High. Although exploitation is network-based and unauthenticated, an attacker must satisfy additional conditions or overcome constraints reflected by that rating.
What is the potential impact of successful exploitation?
Successful exploitation can allow code execution and is rated High for confidentiality, integrity, and availability impact. The scope is listed as unchanged.