The 3Com 3CRWER100-75 router with 1.2.10ww software, when remote management is disabled but a web server has been configured, serves a web page to external clients, which might allow remote attackers to obtain information about the router's existence and product details.
Conclusion & alert: CVE-2007-5420 is rated Low Risk (37.1/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.87%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 2026-05-31 | 0.56% | 0.87% | +0.31% |
| 2 | 2025-03-17 | 1.26% | 0.56% | -0.70% |
| 3 | 2024-08-15 | — | 1.26% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.6 | 2.0 | LOW |
|
4.9 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| 3com | 3crwe554g72t | 3crwer100-75 | cpe:2.3:h:3com:3crwe554g72t:3crwer100-75:*:1.2.10ww:*:*:*:*:* |