WinVNC installs the WinVNC3 registry key with permissions that give Special Access (read and modify) to the Everybody group, which allows users to read and modify sensitive information such as passwords and gain access to the system.
Conclusion & alert: CVE-2000-1164 is rated Moderate Risk (62/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.50%). Core evidence: EPSS rose +1.13% 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 | 0.37% | 1.50% | +1.13% |
| 2 | 2026-03-09 | 0.31% | 0.37% | +0.06% |
| 3 | 2025-03-30 | — | 0.31% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| URL | Tags |
|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2000-11/0253.html | Patch Vendor Advisory |
| http://www.securityfocus.com/bid/1961 | Patch Vendor Advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5545 |