Buffer overflow in the Yahoo! Webcam Upload ActiveX control in ywcupl.dll 2.0.1.4 for Yahoo! Messenger 8.1.0.249 allows remote attackers to execute arbitrary code via a long server property value to the send method. NOTE: some of these details are obtained from third party information.
Conclusion & alert: CVE-2007-3147 is rated High Exploit Risk (82.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 65.01%, 98th percentile). Core evidence: 5 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 |
|---|---|---|---|---|
| 16519 | exploit_db | edb | 2010-06-15 | Exploit-DB ↗ |
| 4053 | exploit_db | edb | 2007-06-08 | Exploit-DB ↗ |
| 4042 | exploit_db | edb | 2007-06-07 | 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 | 2026-05-14 | 69.22% | 65.01% | -4.21% |
| 2 | 2026-02-05 | 71.81% | 69.22% | -2.59% |
| 3 | 2026-01-28 | — | 71.81% | — |
Full EPSS history (19 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 |
|---|---|---|---|
| yahoo | messenger | 2.0.1.4 | cpe:2.3:a:yahoo:messenger:2.0.1.4:*:*:*:*:*:*:* |
| yahoo | messenger | 8.0 | cpe:2.3:a:yahoo:messenger:8.0:*:*:*:*:*:*:* |
| yahoo | messenger | 8.0.0.863 | cpe:2.3:a:yahoo:messenger:8.0.0.863:*:*:*:*:*:*:* |
| yahoo | messenger | 8.0.1 | cpe:2.3:a:yahoo:messenger:8.0.1:*:*:*:*:*:*:* |
| yahoo | messenger | 8.0_2005.1.1.4 | cpe:2.3:a:yahoo:messenger:8.0_2005.1.1.4:*:*:*:*:*:*:* |
| yahoo | messenger | 8.1.0.249 | cpe:2.3:a:yahoo:messenger:8.1.0.249:*:*:*:*:*:*:* |