CVE-2011-0026
Integer signedness error in the SQLConnectW function in an ODBC API (odbc32.dll) in Microsoft Data Access Components (MDAC) 2.8 SP1 and…
- Published
- Updated
- Reserved
- Assigned by
- microsoft
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."
Timeline
ID reserved
By microsoft
- 33 days later
· 33 days later
Published
- 14 years later
· 14 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 34.4% · top 1.6% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Weakness
Affected products
n/a
- affected n/a
References (10)
- ADV-2011-0075 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 45695 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- MS11-002 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 70443 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 1024947 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- oval:org.mitre.oval:def:12333 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://www.zerodayinitiative.com/advisories/ZDI-11-001/ (opens in a new tab)x_refsource_MISCx_transferred
- 42804 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- TA11-011A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://support.avaya.com/css/P8/documents/100124846 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-0026)Record last updated .