{"id":"CVE-2019-6619","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-6619","generatedAt":"2026-10-27T21:18:23.143Z","title":"On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, the Traffic Management Microkernel (TMM) may restart when a virtual server has an HTTP/2 profile with Application Layer Protocol Negotiation (ALPN) enabled and it processes traffic where the…","description":"On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, the Traffic Management Microkernel (TMM) may restart when a virtual server has an HTTP/2 profile with Application Layer Protocol Negotiation (ALPN) enabled and it processes traffic where the ALPN extension size is zero.","published":"2019-05-03T20:29:02.000Z","lastModified":"2026-06-17T02:39:23.000Z","status":"Modified","sourceIdentifier":"f5sirt@f5.com","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":[],"affected":["f5/big-ip access policy manager","f5/big-ip advanced firewall manager","f5/big-ip application acceleration manager","f5/big-ip link controller","f5/big-ip policy enforcement manager","f5/big-ip webaccelerator","f5/big-ip application security manager","f5/big-ip local traffic manager"],"epss":{"score":0.01766,"percentile":0.77913,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/108190","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"f5sirt@f5.com"},{"url":"https://support.f5.com/csp/article/K94563344","tags":["Vendor Advisory"],"source":"f5sirt@f5.com"},{"url":"http://www.securityfocus.com/bid/108190","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.f5.com/csp/article/K94563344","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-6619","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."}