Microsoft Windows DNS improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows. This issue affects some unknown processing of the component DNS. Performing a manipulation results in improper authorization. This vulnerability was named CVE-2026-50295. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Microsoft Windows (affected version unknown). It has been classified as problematic. This affects an unknown functionality of the component DNS. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper privilege management in Microsoft Windows DNS allows an authorized attacker to bypass a security feature locally.

The advisory is shared at msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2026-50295 since 06/04/2026. The exploitability is told to be easy. An attack has to be approached locally. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/14/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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