Buffer overflow in the HTML parser for Netscape 4.75 and earlier allows remote attackers to execute arbitrary commands via a long password value in a form field.
Conclusion & alert: CVE-2000-1187 is rated Moderate Risk (60.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.63%). Core evidence: EPSS rose +1.20% 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 | 1.43% | 2.63% | +1.20% |
| 2 | 2025-05-14 | 1.15% | 1.43% | +0.28% |
| 3 | 2025-03-17 | — | 1.15% | — |
Full EPSS history (5 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] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2000-1187 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| netscape | communicator | <= 4.75 | cpe:2.3:a:netscape:communicator:*:*:*:*:*:*:*:* |
| netscape | navigator | <= 4.75 | cpe:2.3:a:netscape:navigator:*:*:*:*:*:*:*:* |