CVE-2006-5559: microsoft data_access_components Improper Input Validation
Vulnerability summary
CVE-2006-5559 is a high (CVSS 9.3) Improper Input Validation vulnerability in microsoft data_access_components. EPSS estimates a 43.62% chance of exploitation in the next 30 days, higher than 98.7% of scored vulnerabilities. 3 public exploits are recorded.
Timeline
- 27-10-2006PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
43.62%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
+1.71 pp
From 41.90% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
3 foundExploit Reference (securitytracker.com)
Maturity: unknown
Exploit Reference (securityfocus.com)
Maturity: unknown
Microsoft Internet Explorer - ADODB Execute Denial of Service (PoC)
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Microsoft1 product
- data_access_components2.5:sp3 | 2.8:sp1 | 2.8 | 2.7:sp1
1 vendor · 1 product
References
12 links
docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-009Vendor AdvisoryX Refsource MS- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A214VDB EntrySignatureX Refsource OVAL
- www.us-cert.gov/cas/techalerts/TA07-044A.htmlThird Party AdvisoryX Refsource CERTUS Government Resource