{"id":"CVE-2026-63020","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-63020","generatedAt":"2026-10-28T03:38:20.108Z","title":"A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages Impact: An attacker may trick authenticated BIG-IP users into accessing malicious links and reflect a spoofed error message in…","description":"A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages \n\n\n\n\n\nImpact:\n\n\nAn attacker may trick authenticated BIG-IP users \ninto accessing malicious links and reflect a spoofed error message in \nthe victim's BIG-IP Configuration utility web browser session. This is a\n control plane issue; there is no data plane exposure.\n\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","published":"2026-09-02T16:17:18.000Z","lastModified":"2026-09-15T18:19:18.000Z","status":"Analyzed","sourceIdentifier":"f5sirt@f5.com","cvss":{"version":"4.0","score":2.3,"severity":"LOW","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-451"],"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 application visibility and reporting","f5/big-ip automation toolchain","f5/big-ip carrier-grade nat","f5/big-ip container ingress services","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","f5/big-ip websafe"],"epss":{"score":0.0023,"percentile":0.13758,"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 (0.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://my.f5.com/manage/s/article/K000161728","tags":["Mitigation","Vendor Advisory"],"source":"f5sirt@f5.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63020","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."}