ugh Winpopup using large user names. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0292","sourceIdentifier":"cve@mitre.org","published":"1997-04-01T05:00:00.000","lastModified":"2026-06-16T21:48:05.240","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Denial of service through Winpopup using large user names."}],"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:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"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:o:microsoft:windows_nt:4.0:sp1:*:*:*:*:*:*","matchCriteriaId":"5BDCBCB8-DAA3-465F-ADDE-9143B8251989"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_nt:4.0:sp2:*:*:*:*:*:*","matchCriteriaId":"B86E0671-ED68-4549-B3AC-FD8BD79B0860"}]}]}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0292","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0292","source":"af854a3a-2127-422b-91ae-364da2661108"}]}},