CVE-2006-5559
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.
Key facts
- CVSS score
- 9.3 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-20
- EPSS score
- 43.6% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2006-5544)
- Published
- October 27, 2006
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2006-5544 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / data access components
- microsoft / data access components
- microsoft / data access components
- microsoft / data access components
- microsoft / windows 2000
- microsoft / windows 2003 server
- microsoft / windows 2003 server
- microsoft / windows xp
References
- http://blogs.technet.com/msrc/archive/2006/10/27/adodb-connection-poc-published.aspx
- http://research.eeye.com/html/alerts/zeroday/20061027.html(Patch)
- http://secunia.com/advisories/22452(Vendor Advisory)
- http://securitytracker.com/id?1017127(Exploit, Patch, Vendor Advisory)
- http://www.kb.cert.org/vuls/id/589272(Patch, US Government Resource)
- http://www.osvdb.org/31882
- http://www.securityfocus.com/bid/20704(Exploit, Patch)
- http://www.us-cert.gov/cas/techalerts/TA07-044A.html(US Government Resource)
- http://www.vupen.com/english/advisories/2007/0578(Vendor Advisory)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-009
- https://exchange.xforce.ibmcloud.com/vulnerabilities/29837
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A214
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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