{"id":"CVE-2011-5227","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-5227","generatedAt":"2026-10-27T17:57:56.953Z","title":"Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management Suite (NMS) before 4.1.0.80 allows remote attackers to execute arbitrary code via a long PRIO field in a message to UDP port 514.","description":"Stack-based buffer overflow in the Syslog service (nssyslogd.exe) in Enterasys Network Management Suite (NMS) before 4.1.0.80 allows remote attackers to execute arbitrary code via a long PRIO field in a message to UDP port 514.","published":"2012-10-25T17:55:06.000Z","lastModified":"2026-06-16T23:36:11.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":10,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C"},"cwe":["CWE-119"],"affected":["enterasys/netsight"],"epss":{"score":0.76952,"percentile":0.99546,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2013-01-04","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":23887,"kind":"exploit","title":"Enterasys NetSight - 'nssyslogd.exe' Remote Buffer Overflow (Metasploit)","url":"https://www.exploit-db.com/exploits/23887","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/23887.rb","file":"exploits/windows/remote/23887.rb","published":"2013-01-04","added":"2013-01-04","updated":"2013-01-04","author":"Metasploit","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2011-5227","OSVDB-77971"],"tags":"Metasploit Framework (MSF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"http://www.zerodayinitiative.com/advisories/ZDI-11-350/"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 77.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://secunia.com/advisories/47263","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id?1026440","source":"cve@mitre.org"},{"url":"http://www.zerodayinitiative.com/advisories/ZDI-11-350/","source":"cve@mitre.org"},{"url":"https://cp-enterasys.kb.net/display/4n/kb/article.aspx?aid=14206&n=3&tab=search&bt=4n&s=","source":"cve@mitre.org"},{"url":"https://cp-enterasys.kb.net/utility/downloadArticle.aspx?aid=14206","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71889","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/47263","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026440","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.zerodayinitiative.com/advisories/ZDI-11-350/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cp-enterasys.kb.net/display/4n/kb/article.aspx?aid=14206&n=3&tab=search&bt=4n&s=","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cp-enterasys.kb.net/utility/downloadArticle.aspx?aid=14206","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71889","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-5227","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}