{"cve":"CVE-2024-39539","nvd":{"published":"2024-07-11T17:15:12.633","modified":"2026-06-17T07:42:09.903","status":"Analyzed","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.","cvss_v4":{"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","score":6.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.3},"cwes":["CWE-401"],"references":["https://supportportal.juniper.net/JSA82999","https://supportportal.juniper.net/JSA82999"],"products":["juniper:junos"],"source":"nvd","synced_at":"2026-10-19T21:52:42.518321223+00:00"},"epss":{"cve":"CVE-2024-39539","score":0.00217,"percentile":0.12154,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}