Netscreen running ScreenOS 4.0.0r6 and earlier allows remote attackers to cause a denial of service via a malformed SSH packet to the Secure Command Shell (SCS) management interface, as demonstrated via certain CRC32 exploits, a different vulnerability than CVE-2001-0144.
Conclusion & alert: CVE-2002-1547 is rated Moderate Risk (52.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.55%). Core evidence: EPSS rose +1.73% over the last day, indicating growing attacker interest. 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 | 1.82% | 3.55% | +1.73% |
| 2 | 2026-05-07 | 1.72% | 1.82% | +0.09% |
| 3 | 2025-03-30 | — | 1.72% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| juniper | netscreen_screenos | <= 4.0.0r6 | cpe:2.3:o:juniper:netscreen_screenos:*:*:*:*:*:*:*:* |