Avirt Mail 4.0 and 4.2 allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long "RCPT TO" or "MAIL FROM" command.
Conclusion & alert: CVE-2000-0971 is rated High Exploit Risk (91.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.58%, 94th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.73% over the last day, indicating growing attacker interest. 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 |
|---|---|---|---|---|
| 20311 | exploit_db | edb | 2000-10-23 | Exploit-DB ↗ |
| — | 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 | 2026-03-13 | 7.86% | 11.58% | +3.73% |
| 2 | 2025-07-01 | 6.63% | 7.86% | +1.22% |
| 3 | 2025-03-30 | — | 6.63% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| avirt | avirt_mail_server | 4.0 | cpe:2.3:a:avirt:avirt_mail_server:4.0:*:*:*:*:*:*:* |
| avirt | avirt_mail_server | 4.2 | cpe:2.3:a:avirt:avirt_mail_server:4.2:*:*:*:*:*:*:* |