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CVE-2011-0661

10.0 · HIGH

The SMB Server service 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 pr…

Published Apr 13, 2011microsoftCWE-20EPSS 44.58%

Overview

CVE-2011-0661 is a high-severity vulnerability affecting microsoft windows_2003_server. It was published on April 13, 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 SMB Server service 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 validate fields in SMB requests, which allows remote attackers to execute arbitrary code via a malformed request in a (1) SMBv1 or (2) SMBv2 packet, aka "SMB Transaction Parsing 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

VendorProductVersionsStatus

References

Refosvdb.org/71781Refsecunia.com/advisories/44072Refwww.securityfocus.com/bid/47198Refwww.securitytracker.com/id?1025329Refwww.us-cert.gov/cas/techalerts/TA11-102A.htmlRefwww.vupen.com/english/advisories/2011/0939Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-020Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12076Refosvdb.org/71781Refsecunia.com/advisories/44072

How CyberStrike helps

Frequently asked questions

What is CVE-2011-0661?

CVE-2011-0661 is a high-severity vulnerability affecting microsoft windows_2003_server. It was published on April 13, 2011 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2011-0661?

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-2011-0661?

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-2011-0661?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-0661 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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