Unspecified vulnerability in the NEC mobile handset allows remote attackers to cause a denial of service (reboot) via crafted packets. NOTE: as of 20071016, the only disclosure is a vague pre-advisory with no actionable information. However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.
Conclusion & alert: CVE-2007-5557 is rated Moderate Risk (56.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.47%). 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 | 2026-06-15 | 0.61% | 1.47% | +0.85% |
| 2 | 2026-06-06 | 0.46% | 0.61% | +0.15% |
| 3 | 2025-03-30 | — | 0.46% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| nec | mobile_handset | — | cpe:2.3:h:nec:mobile_handset:-:*:*:*:*:*:*:* |