{"id":"CVE-2018-18066","details":"snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.","modified":"2026-04-10T04:08:42.791107Z","published":"2018-10-08T18:29:00.520Z","references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20181107-0001/"},{"type":"ADVISORY","url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"},{"type":"FIX","url":"https://dumpco.re/blog/net-snmp-5.7.3-remote-dos"},{"type":"FIX","url":"https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/"},{"type":"FIX","url":"https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/net-snmp/net-snmp","events":[{"introduced":"0"},{"fixed":"463235edcc53e2477efe35da717fab292741aab5"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"5.8"}]}}],"versions":["v3.0","v3.0.1","v3.0.2","v3.0.2.1","v3.0.3","v3.0.4","v3.0.5","v3.0.6","v3.0.7","v3.0.7.1","v3.0.7.2","v3.1","v3.1.0.1","v3.1.1","v3.1.2","v3.1.2.1","v3.1.3","v3.2","v3.3","v3.4","v3.5","v3.6","v3.6.1","v4.0","v4.0.1","v4.1","v4.1.1","v4.2","v5.0","v5.0.1","v5.0.11.1","v5.0.2","v5.0.3","v5.0.4","v5.0.5","v5.0.6","v5.0.7","v5.1","v5.1.4.1","v5.2","v5.3","v5.4","v5.5","v5.5.pre1","v5.5.pre2","v5.5.pre3","v5.5.rc1","v5.5.rc2","v5.5.rc3","v5.6","v5.6.pre1","v5.6.pre2","v5.6.pre3","v5.6.rc1","v5.6.rc2","v5.6.rc3","v5.7","v5.7.pre1","v5.7.pre2","v5.7.rc1","v5.7.rc2","v5.7.rc3","v5.8.pre1","v5.8.pre2","v5.8.pre3","v5.8.rc1","v5.8.rc2","v5.8.rc3","v5.8.rc4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18066.json","unresolved_ranges":[{"events":[{"introduced":"11.0"},{"last_affected":"11.5"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}