Heap-based buffer overflow in the Quiksoft EasyMail Objects 6 ActiveX control allows remote attackers to execute arbitrary code via a long argument to the AddAttachment method.
Conclusion & alert: CVE-2009-4663 is rated High Exploit Risk (87.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.12%, 93th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.48% over the last day, indicating growing attacker interest. 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 |
|---|---|---|---|---|
| 9705 | exploit_db | edb | 2009-09-17 | 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 | 2026-05-02 | 8.64% | 11.12% | +2.48% |
| 2 | 2025-09-10 | 23.06% | 8.64% | -14.43% |
| 3 | 2025-03-30 | — | 23.06% | — |
Full EPSS history (12 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 | Product | Version | Raw CPE |
|---|---|---|---|
| quiksoft | easymail_objects | 6.0 | cpe:2.3:a:quiksoft:easymail_objects:6.0:*:*:*:*:*:*:* |