.0 and earlier allows remote attackers to cause a denial of service by sending a short, malformed request. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-1045","sourceIdentifier":"cve@mitre.org","published":"1998-01-15T05:00:00.000","lastModified":"2026-06-16T21:49:35.440","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"pnserver in RealServer 5.0 and earlier allows remote attackers to cause a denial of service by sending a short, malformed request."}],"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:C","baseScore":7.8,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.9,"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:a:realnetworks:realserver:5.0:*:*:*:*:*:*:*","matchCriteriaId":"BE671A54-2E76-467E-8945-10982B79F4CE"}]}]}],"references":[{"url":"http://marc.info/?l=bugtraq&m=88490880523890&w=2","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=88492978527261&w=2","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=90338245305236&w=2","source":"cve@mitre.org"},{"url":"http://service.real.com/help/faq/serv501.html","source":"cve@mitre.org","tags":["Patch"]},{"url":"http://www.iss.net/security_center/static/7297.php","source":"cve@mitre.org"},{"url":"http://www.osvdb.org/6979","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=88490880523890&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=88492978527261&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=90338245305236&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://service.real.com/help/faq/serv501.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"http://www.iss.net/security_center/static/7297.php","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.osvdb.org/6979","source":"af854a3a-2127-422b-91ae-364da2661108"}]}},