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CVE-2011-0657

9.8 · CRITICAL
Published Apr 13, 2011 microsoft CWE-20

Overview

CVE-2011-0657 is a critical-severity vulnerability affecting microsoft windows_2003_server. It was published on April 13, 2011 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

DNSAPI.dll in the DNS client in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly process DNS queries, which allows remote attackers to execute arbitrary code via (1) a crafted LLMNR broadcast query or (2) a crafted application, aka "DNS Query Vulnerability."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update windows_2003_server 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

Vendor Product Versions Status

References

Ref osvdb.org/71780 Ref secunia.com/advisories/44161 Ref www.securityfocus.com/bid/47242 Ref www.securitytracker.com/id?1025332 Ref www.us-cert.gov/cas/techalerts/TA11-102A.html Ref www.vupen.com/english/advisories/2011/0948 Ref docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-030 Ref oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11902 Ref osvdb.org/71780 Ref secunia.com/advisories/44161

Frequently Asked Questions

What is CVE-2011-0657?

CVE-2011-0657 is a critical-severity vulnerability affecting microsoft windows_2003_server. It was published on April 13, 2011 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2011-0657?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-0657?

Check the references section for vendor advisories and patches from microsoft. Update windows_2003_server 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-2011-0657?

CyberStrike's AI-powered security agents can automatically detect CVE-2011-0657 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

AI agents map your attack surface to find vulnerabilities like this one.
Continuous Pentesting

Automated penetration testing that runs continuously, not just quarterly.
Code Review

AI-driven PR review catches vulnerable dependencies before they ship.
HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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