CVE-2026-65798: Windows DNS Elevation of Privilege Vulnerability
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
Other sources
Windows DNS Elevation of Privilege 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 10.0.19045.7663Patch KB5120249 - Upgrade
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Fixed in 10.0.19044.7663Patch KB5120249 - Upgrade
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Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
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Fixed in 10.0.17763.9115Patch KB5120238 - Upgrade
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Fixed in 10.0.14393.9418Patch KB5120418 - Upgrade
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Fixed in 10.0.28000.2704Patch KB5121000 - Upgrade
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Fixed in 6.3.9600.23337Patch KB5120386 - Upgrade
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Fixed in 6.2.9200.26279Patch KB5120385 - Upgrade
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Fixed in 10.0.26100.9168Fixed in 10.0.26000.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.22631.7517Patch KB5120240 - Upgrade
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Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228
Event History
Frequently Asked Questions
What is the severity of CVE-2026-65798?
The severity of CVE-2026-65798 is rated as medium with a score of 6.7.
How do I fix CVE-2026-65798?
To fix CVE-2026-65798, apply the latest security updates provided by Microsoft for your Windows operating system.
What type of vulnerability is CVE-2026-65798?
CVE-2026-65798 is an elevation of privilege vulnerability in Windows DNS.
Who is affected by CVE-2026-65798?
CVE-2026-65798 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server.
What attack vector is used in CVE-2026-65798?
CVE-2026-65798 can be exploited locally by an authorized attacker to elevate their privileges.