{"id":"CVE-2021-23007","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-23007","generatedAt":"2026-10-28T02:57:31.383Z","title":"On BIG-IP versions 14.1.4 and 16.0.1.1, when the Traffic Management Microkernel (TMM) process handles certain undisclosed traffic, it may start dropping all fragmented IP traffic.","description":"On BIG-IP versions 14.1.4 and 16.0.1.1, when the Traffic Management Microkernel (TMM) process handles certain undisclosed traffic, it may start dropping all fragmented IP traffic. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.","published":"2021-03-31T18:15:16.000Z","lastModified":"2026-06-17T03:38:12.000Z","status":"Modified","sourceIdentifier":"f5sirt@f5.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":[],"affected":["f5/big-ip access policy manager","f5/big-ip advanced firewall manager","f5/big-ip advanced web application firewall","f5/big-ip analytics","f5/big-ip application acceleration manager","f5/big-ip application security manager","f5/big-ip ddos hybrid defender","f5/big-ip domain name system","f5/big-ip edge gateway","f5/big-ip fraud protection service","f5/big-ip global traffic manager","f5/big-ip link controller","f5/big-ip local traffic manager","f5/big-ip policy enforcement manager","f5/big-ip ssl orchestrator","f5/big-ip webaccelerator"],"epss":{"score":0.0158,"percentile":0.75335,"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":"low","text":"Lower severity and a low EPSS score (1.58%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://support.f5.com/csp/article/K37451543","tags":["Exploit","Patch","Vendor Advisory"],"source":"f5sirt@f5.com"},{"url":"https://support.f5.com/csp/article/K37451543","tags":["Exploit","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-23007","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."}