xinetd 2.1.8.x does not properly restrict connections if hostnames are used for access control and the connecting host does not have a reverse DNS entry.
Conclusion & alert: CVE-2000-0536 is rated High Exploit Risk (74.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.14%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.70% 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 |
|---|---|---|---|---|
| — | 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 | 0.44% | 2.14% | +1.70% |
| 2 | 2025-10-14 | 0.49% | 0.44% | -0.05% |
| 3 | 2025-03-17 | — | 0.49% | — |
Full EPSS history (6 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 | Product | Version | Raw CPE |
|---|---|---|---|
| xinetd | xinetd | 2.1.87 | cpe:2.3:a:xinetd:xinetd:2.1.87:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.88 | cpe:2.3:a:xinetd:xinetd:2.1.88:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.88_pre1 | cpe:2.3:a:xinetd:xinetd:2.1.88_pre1:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.88_pre2 | cpe:2.3:a:xinetd:xinetd:2.1.88_pre2:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.89_pre1 | cpe:2.3:a:xinetd:xinetd:2.1.89_pre1:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.89_pre2 | cpe:2.3:a:xinetd:xinetd:2.1.89_pre2:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.89_pre3 | cpe:2.3:a:xinetd:xinetd:2.1.89_pre3:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.89_pre4 | cpe:2.3:a:xinetd:xinetd:2.1.89_pre4:*:*:*:*:*:*:* |
| xinetd | xinetd | 2.1.89_pre5 | cpe:2.3:a:xinetd:xinetd:2.1.89_pre5:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.debian.org/security/2000/20000619 | |
| http://www.securityfocus.com/bid/1381 | Exploit Patch Vendor Advisory |
| http://www.synack.net/xinetd/ | Patch Vendor Advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/4986 |