{"id":"CVE-2016-9565","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-9565","generatedAt":"2026-10-28T20:06:27.493Z","title":"MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow remote attackers to read or write to arbitrary files by spoofing a crafted response from the Nagios RSS feed server.","description":"MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow remote attackers to read or write to arbitrary files by spoofing a crafted response from the Nagios RSS feed server.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4796.","published":"2016-12-15T22:59:00.000Z","lastModified":"2026-06-17T00:56:15.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-284"],"affected":["nagios/nagios"],"epss":{"score":0.22684,"percentile":0.97711,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.18846,"percentile":0.97224},{"date":"2026-09-22","score":0.22684,"percentile":0.9762}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2016-12-15","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":40920,"kind":"exploit","title":"Nagios < 4.2.2 - Arbitrary Code Execution","url":"https://www.exploit-db.com/exploits/40920","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/40920.py","file":"exploits/linux/remote/40920.py","published":"2016-12-15","added":"2016-12-15","updated":"2016-12-16","author":"Dawid Golunski","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2016-9565"],"tags":"Remote","aliases":null,"applicationUrl":"http://www.exploit-db.comnagios-4.2.1.tar.gz","screenshotUrl":null,"referenceUrl":"https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.html"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 22.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0211.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0212.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0213.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0214.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0258.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0259.html","source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2016/Dec/57","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/539925/100/0/threaded","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/94922","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1037488","source":"cve@mitre.org"},{"url":"https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.html","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201702-26","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201710-20","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/40920/","source":"cve@mitre.org"},{"url":"https://www.nagios.org/projects/nagios-core/history/4x/","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0211.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0212.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0213.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0214.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0258.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0259.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2016/Dec/57","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/539925/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/94922","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037488","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201702-26","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201710-20","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/40920/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.nagios.org/projects/nagios-core/history/4x/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-9565","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."}