{"id":"CVE-2025-54500","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-54500","generatedAt":"2026-10-28T05:26:07.403Z","title":"An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit (HTTP/2 MadeYouReset Attack).","description":"An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit (HTTP/2 MadeYouReset Attack). \n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","published":"2025-08-13T15:15:39.000Z","lastModified":"2026-06-17T09:40:13.000Z","status":"Analyzed","sourceIdentifier":"f5sirt@f5.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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-770"],"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","f5/big-ip next central manager","f5/big-ip next cloud-native network functions","f5/big-ip next for kubernetes","f5/big-ip next service proxy for kubernetes","f5/silverline"],"epss":{"score":0.00498,"percentile":0.42484,"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 (0.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://my.f5.com/manage/s/article/K000152001","tags":["Vendor Advisory"],"source":"f5sirt@f5.com"},{"url":"https://www.kb.cert.org/vuls/id/767506","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-54500","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."}