CVE-1999-0656

NONECVSS 0.0

0.0

The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.

CVSS v3: —
EG Score: —
EPSS: 40.7%
KEV: Not listed

Published

January 1, 1999

Last Modified

April 16, 2026

References (4)

cve@mitrehttp://ca.com/au/securityadvisor/vulninfo/Vuln.aspx?ID=1638
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/348
af854a3a-2127-422b-91ae-364da2661108http://ca.com/au/securityadvisor/vulninfo/Vuln.aspx?ID=1638
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/348

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(4)

What is CVE-1999-0656?

CVE-1999-0656 is a none vulnerability published on January 1, 1999. The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.

When was CVE-1999-0656 disclosed?

CVE-1999-0656 was first published in the National Vulnerability Database on January 1, 1999, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-1999-0656 actively exploited?

CVE-1999-0656 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-0656?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-0656, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-1999-0656

📅 Published

🔄 Last Modified

🔗 References (4)