{"id":"CVE-2024-39539","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-39539","generatedAt":"2026-10-28T01:19:17.470Z","title":"A Missing Release of Memory after Effective Lifetime vulnerability in Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).","description":"A Missing Release of Memory after Effective Lifetime vulnerability in Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).\n\nIn a subscriber management scenario continuous subscriber logins will trigger a memory leak and eventually lead to an FPC crash and restart.\n\nThis issue affects Junos OS on MX Series:\n\n\n\n  *  All version before 21.2R3-S6,\n  *  21.4 versions before 21.4R3-S6,\n  *  22.1 versions before 22.1R3-S5,\n  *  22.2 versions before 22.2R3-S3, \n  *  22.3 versions before 22.3R3-S2,\n  *  22.4 versions before 22.4R3,\n  *  23.2 versions before 23.2R2.","published":"2024-07-11T17:15:13.000Z","lastModified":"2026-06-17T07:42:10.000Z","status":"Analyzed","sourceIdentifier":"sirt@juniper.net","cvss":{"version":"4.0","score":6,"severity":"MEDIUM","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-401"],"affected":["juniper/junos"],"epss":{"score":0.00217,"percentile":0.1201,"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 (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://supportportal.juniper.net/JSA82999","tags":["Vendor Advisory"],"source":"sirt@juniper.net"},{"url":"https://supportportal.juniper.net/JSA82999","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-39539","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."}