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CVE-2011-1966

10.0 · HIGH

The DNS server in Microsoft Windows Server 2008 SP2, R2, and R2 SP1 does not properly handle NAPTR queries that trigger recursive processing, which allows remote attackers to execute arbitrary code…

Published Aug 10, 2011microsoftCWE-20EPSS 55.20%

Overview

CVE-2011-1966 is a high-severity vulnerability affecting microsoft windows_server_2008. It was published on August 10, 2011 and has a CVSS 2.0 base score of 10.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The DNS server in Microsoft Windows Server 2008 SP2, R2, and R2 SP1 does not properly handle NAPTR queries that trigger recursive processing, which allows remote attackers to execute arbitrary code via a crafted query, aka "DNS NAPTR Query Vulnerability."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update windows_server_2008 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.us-cert.gov/cas/techalerts/TA11-221A.htmlRefdocs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12764Refwww.us-cert.gov/cas/techalerts/TA11-221A.htmlRefdocs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12764

How CyberStrike helps

Frequently asked questions

What is CVE-2011-1966?

CVE-2011-1966 is a high-severity vulnerability affecting microsoft windows_server_2008. It was published on August 10, 2011 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2011-1966?

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-1966?

Check the references section for vendor advisories and patches from microsoft. Update windows_server_2008 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-1966?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-1966 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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