CVE-2011-0026: microsoft data_access_components Numeric Errors
Vulnerability summary
CVE-2011-0026 is a high (CVSS 9.3) Numeric Errors vulnerability in microsoft data_access_components. EPSS estimates a 34.40% chance of exploitation in the next 30 days, higher than 98.4% of scored vulnerabilities.
Timeline
- 12-01-2011PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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."
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
34.40%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 34.40% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft2 products
- data_access_components2.8:sp1 | 2.8:sp2
- windows_data_access_components6.0
1 vendor · 2 products
References
10 links- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-002Vendor AdvisoryX Refsource MS
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12333VDB EntrySignatureX Refsource OVAL
- www.zerodayinitiative.com/advisories/ZDI-11-001/X Refsource MISC
- www.us-cert.gov/cas/techalerts/TA11-011A.htmlThird Party AdvisoryX Refsource CERTUS Government Resource
- support.avaya.com/css/P8/documents/100124846X Refsource CONFIRM