Stack-based buffer overflow in Miranda IM 0.6.8 and 0.7.0 allows remote attackers to execute arbitrary code via a crafted Yahoo! Messenger packet. NOTE: this might overlap CVE-2007-5590.
Conclusion & alert: CVE-2007-5543 is rated High Risk (69.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.82%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2025-10-17 | 4.04% | 4.82% | +0.78% |
| 2 | 2025-08-07 | 4.51% | 4.04% | -0.47% |
| 3 | 2025-03-30 | — | 4.51% | — |
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 |
|---|---|---|---|
| miranda-im | miranda_im | 0.6.8 | cpe:2.3:a:miranda-im:miranda_im:0.6.8:*:*:*:*:*:*:* |
| miranda-im | miranda_im | 0.7.0 | cpe:2.3:a:miranda-im:miranda_im:0.7.0:*:*:*:*:*:*:* |