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.
Conclusion & alert: CVE-2006-5559 is rated High Exploit Risk (87.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 72.60%, 99th percentile). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 2629 | exploit_db | edb | 2006-10-24 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-09 | 71.77% | 72.60% | +0.83% |
| 2 | 2026-02-05 | 70.45% | 71.77% | +1.33% |
| 3 | 2025-12-28 | — | 70.45% | — |
Full EPSS history (23 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-5559: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-5559 |
: Failed exploit attempts will likely result in an application level denial-of-service condition.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | data_access_components | 2.5 | cpe:2.3:a:microsoft:data_access_components:2.5:sp3:*:*:*:*:*:* |
| microsoft | data_access_components | 2.8 | cpe:2.3:a:microsoft:data_access_components:2.8:sp1:*:*:*:*:*:* |
| microsoft | data_access_components | 2.8 | cpe:2.3:a:microsoft:data_access_components:2.8:*:*:*:*:*:*:* |
| microsoft | data_access_components | 2.7 | cpe:2.3:a:microsoft:data_access_components:2.7:sp1:*:*:*:*:*:* |