Buffer overflow in the UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) implementation in iChat on Apple Mac OS X 10.3.9 and 10.4.10 allows network-adjacent remote attackers to execute arbitrary code via a crafted packet.
Conclusion & alert: CVE-2007-3748 is rated Moderate Risk (53.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.38%). Mandatory action: Review affected assets and schedule 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 | 2026-05-14 | 3.58% | 4.38% | +0.80% |
| 2 | 2026-03-22 | 3.44% | 3.58% | +0.14% |
| 3 | 2025-10-18 | — | 3.44% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.4 | 2.0 | MEDIUM |
|
5.5 | 6.4 | [email protected] |