{"id":"CVE-2015-5621","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-5621","generatedAt":"2026-11-05T05:57:17.535Z","title":"The snmp_pdu_parse function in snmp_api.c in net-snmp 5.7.2 and earlier does not remove the varBind variable in a netsnmp_variable_list item when parsing of the SNMP PDU fails, which allows remote attackers to cause a denial of service (crash) and…","description":"The snmp_pdu_parse function in snmp_api.c in net-snmp 5.7.2 and earlier does not remove the varBind variable in a netsnmp_variable_list item when parsing of the SNMP PDU fails, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted packet.","published":"2015-08-19T15:59:09.000Z","lastModified":"2026-06-17T00:29:28.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-19","CWE-190"],"affected":["net-snmp/net-snmp"],"epss":{"score":0.38322,"percentile":0.9857,"date":"2026-11-04","history":[{"date":"2026-10-22","score":0.38322,"percentile":0.98567}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2018-10-08","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":45547,"kind":"exploit","title":"net-snmp 5.7.3 - (Authenticated) Denial of Service (PoC)","url":"https://www.exploit-db.com/exploits/45547","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/45547.txt","file":"exploits/linux/dos/45547.txt","published":"2018-10-08","added":"2018-10-08","updated":"2019-03-17","author":"Magnus Klaaborg Stubman","type":"dos","platform":"linux","port":null,"verified":false,"codes":["CVE-2018-18065","CVE-2015-5621"],"tags":"Denial of Service (DoS)","aliases":null,"applicationUrl":"http://www.exploit-db.comnet-snmp-5.7.3.tar.gz","screenshotUrl":null,"referenceUrl":"https://dumpco.re/blog/net-snmp-5.7.3-remote-dos"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 38.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-updates/2015-09/msg00004.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1636.html","source":"cve@mitre.org"},{"url":"http://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/","source":"cve@mitre.org"},{"url":"http://support.citrix.com/article/CTX209443","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2015/04/13/1","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2015/04/16/15","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2015/07/31/1","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/76380","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1033304","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-2711-1","source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1212408","source":"cve@mitre.org"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf","source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/net-snmp/bugs/2615/","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4154","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/45547/","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2015-09/msg00004.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1636.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.citrix.com/article/CTX209443","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2015/04/13/1","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2015/04/16/15","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2015/07/31/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/76380","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1033304","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2711-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1212408","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/net-snmp/bugs/2615/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4154","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45547/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-5621","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."}