CVE-2011-0026

CriticalCVSS 9.3/10Last modified Jun 16, 2026

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."

Metrics

CVSS 2.0 9.3/10AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness enumeration

CWE-189

Affected software

No affected versions have been published.

Timeline

Published: Jan 12, 2011
Last modified: Jun 16, 2026
NVD status: Modified

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