nning that exposes valid user information to any entity on the network. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0626","sourceIdentifier":"cve@mitre.org","published":"1997-01-01T05:00:00.000","lastModified":"2026-06-16T21:48:45.083","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A version of rusers is running that exposes valid user information to any entity on the network."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:N","baseScore":0.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":10.0,"impactScore":0.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:sun:rpc.ruserd:*:*:*:*:*:*:*:*","matchCriteriaId":"D0E77D0D-69A8-4594-AA70-6740147EE52D"}]}]}],"references":[{"url":"https://www.cve.org/CVERecord?id=CVE-1999-0626","source":"cve@mitre.org"},{"url":"https://www.cve.org/CVERecord?id=CVE-1999-0626","source":"af854a3a-2127-422b-91ae-364da2661108"}],"evaluatorSolution":"rusers is an unsecured and obsolete protocol and it should be disabled.","evaluatorImpact":"This Common Vulnerabilities and Exposures (CVE) entry is a configuration issue and not a software flaw. As such, it doesn’t fit in the CVE software flaw list. The Common Vulnerability Scoring System (CVSS) base score for this CVE entry has been set to 0 because this CVE entry has no impact as a software flaw according to CVSS. This does not mean that the configuration issue is not important and there may be security implications relative to computers having this configuration."}},