VPN Server module in Linksys EtherFast BEFVP41 Cable/DSL VPN Router before 1.40.1 reduces the key lengths for keys that are supplied via manual key entry, which makes it easier for attackers to crack the keys.
Conclusion & alert: CVE-2002-0426 is rated Moderate Risk (54.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.36%). 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 | 0.72% | 1.36% | +0.64% |
| 2 | 2025-07-27 | 0.49% | 0.72% | +0.23% |
| 3 | 2025-03-30 | — | 0.49% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| URL | Tags |
|---|---|
| ftp://ftp.linksys.com/pub/befsr41/befvp41-1402.zip | |
| http://online.securityfocus.com/archive/1/260613 | Vendor Advisory |
| http://www.iss.net/security_center/static/8397.php | Vendor Advisory |
| http://www.securityfocus.com/bid/4250 | Patch Vendor Advisory |