The Execute method in the ADODB.Connection 2.7 and 2.8 ActiveX control objects…
Priority HIGH 69CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The Execute method in the ADODB.Connection 2.7 and 2.8 ActiveX control objects (ADODB.Connection.2.7 and ADODB.Connection.2.8) in the Microsoft Data Access Components (MDAC) 2.5 SP3, 2.7 SP1, 2.8, and 2.8 SP1 does not properly track freed memory when the second argument is a BSTR, which allows remote attackers to cause a denial of service (Internet Explorer crash) and possibly execute arbitrary code via certain strings in the second and third arguments.
Why it matters now
EPSS 0.43619 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:a:microsoft:data_access_components:2.5:sp3:*:*:*:*:*:* | 2.5 sp3 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:a:microsoft:data_access_components:2.8:sp1:*:*:*:*:*:* | 2.8 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:* | all versions | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_2003_server:itanium:*:*:*:*:*:*:* | itanium | Running on | Microsoft |
| cpe:2.3:a:microsoft:data_access_components:2.8:*:*:*:*:*:*:* | 2.8 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:data_access_components:2.7:sp1:*:*:*:*:*:* | 2.7 sp1 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:a:microsoft:data_access_components:2.5:sp3:*:*:*:*:*:* Versions 2.5 sp3 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:a:microsoft:data_access_components:2.8:sp1:*:*:*:*:*:* Versions 2.8 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_2003_server:itanium:*:*:*:*:*:*:* Versions itanium Running on ·Microsoft
- cpe:2.3:a:microsoft:data_access_components:2.8:*:*:*:*:*:*:* Versions 2.8 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:data_access_components:2.7:sp1:*:*:*:*:*:* Versions 2.7 sp1 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-5559
- 2026-10-03 Alias added: GHSA-662x-vqg2-x4mr
References
More Microsoft Data Access Components vulnerabilities
- TI-1999-00961 The Remote Data Service (RDS) DataFactory component of Microsoft Data Access Components… CVSS 2.0HIGH 10.0
- TI-2011-00026 Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access… CVSS 2.0HIGH 9.3
- TI-2012-01671 Heap-based buffer overflow in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 and… CVSS 3.1CRITICAL 9.8
- TI-2002-01111 Heap-based buffer overflow in the Remote Data Services (RDS) component of Microsoft Data… CVSS 2.0HIGH 7.5
- TI-2003-00825 Buffer overflow in a component of Microsoft Data Access Components (MDAC) 2.5 through 2.8… CVSS 2.0HIGH 10.0
- TI-2011-00025 Integer signedness error in the SQLConnectW function in an ODBC API (odbc32.dll) in… CVSS 2.0HIGH 9.3
Sources
- CVE-2006-5559 · CVE Program
- CVE-2006-5559 · NVD
- FIRST EPSS
- GHSA-662x-vqg2-x4mr · GitHub Advisory Database · CC BY 4.0
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