{"id":"CVE-2017-6166","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-6166","generatedAt":"2026-10-28T19:46:46.467Z","title":"In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets.","description":"In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets. This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. If the affected BIG-IP system is configured as part of a device group, it will trigger a failover to the peer device.","published":"2017-11-22T16:29:00.000Z","lastModified":"2026-06-17T01:21:53.000Z","status":"Modified","sourceIdentifier":"f5sirt@f5.com","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-415"],"affected":["f5/big-ip afm","f5/big-ip analytics","f5/big-ip apm","f5/big-ip application acceleration manager","f5/big-ip asm","f5/big-ip dns","f5/big-ip link controller","f5/big-ip ltm","f5/big-ip pem","f5/f5 websafe","f5/linerate"],"epss":{"score":0.01928,"percentile":0.7987,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.93%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/102264","tags":["Third Party Advisory","VDB Entry"],"source":"f5sirt@f5.com"},{"url":"http://www.securitytracker.com/id/1039949","tags":["Third Party Advisory","VDB Entry"],"source":"f5sirt@f5.com"},{"url":"https://support.f5.com/csp/article/K65615624","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"source":"f5sirt@f5.com"},{"url":"http://www.securityfocus.com/bid/102264","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1039949","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.f5.com/csp/article/K65615624","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-6166","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."}