The POP3 server in Netscape Messaging Server 4.15p1 generates different error messages for incorrect user names versus incorrect passwords, which allows remote attackers to determine valid users on the system and harvest email addresses for spam abuse.
Conclusion & alert: CVE-2000-0960 is rated High Exploit Risk (61.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.70%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.86% | 1.70% | +0.84% |
| 2 | 2025-05-14 | 1.08% | 0.86% | -0.22% |
| 3 | 2025-03-30 | — | 1.08% | — |
Full EPSS history (8 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 |
|---|---|---|---|
| netscape | messaging_server | 4.15 | cpe:2.3:a:netscape:messaging_server:4.15:*:*:*:*:*:*:* |
| netscape | messaging_server | 4.15 | cpe:2.3:a:netscape:messaging_server:4.15:patch1:*:*:*:*:*:* |
| netscape | messaging_server | 4.15 | cpe:2.3:a:netscape:messaging_server:4.15:patch2:*:*:*:*:*:* |