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CVE-2011-0026

9.3 · HIGH

Integer signedness error in the SQLConnectW function in an ODBC API (odbc32.dll) in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, allows re…

Published Jan 12, 2011microsoftCWE-189EPSS 34.40%

Overview

CVE-2011-0026 is a high-severity vulnerability affecting microsoft data_access_components. It was published on January 12, 2011 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Integer signedness error in the SQLConnectW function in an ODBC API (odbc32.dll) in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, allows remote attackers to execute arbitrary code via a long string in the Data Source Name (DSN) and a crafted szDSN argument, which bypasses a signed comparison and leads to a buffer overflow, aka "DSN Overflow Vulnerability."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update data_access_components 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/70443Refsecunia.com/advisories/42804Refsupport.avaya.com/css/P8/documents/100124846Refwww.securityfocus.com/bid/45695Refwww.securitytracker.com/id?1024947Refwww.us-cert.gov/cas/techalerts/TA11-011A.htmlRefwww.vupen.com/english/advisories/2011/0075Refwww.zerodayinitiative.com/advisories/ZDI-11-001/Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-002Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12333

How CyberStrike helps

Frequently asked questions

What is CVE-2011-0026?

CVE-2011-0026 is a high-severity vulnerability affecting microsoft data_access_components. It was published on January 12, 2011 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2011-0026?

This vulnerability has a CVSS 2.0 base score of 9.3, 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-2011-0026?

Check the references section for vendor advisories and patches from microsoft. Update data_access_components 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-2011-0026?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-0026 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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