{"id":"CVE-2024-30387","aliases":["EUVD-2024-28308","GHSA-h843-jc82-h6jf"],"status":"published","title":"Junos OS: ACX5448 \u0026 ACX710: Due to interface flaps the PFE process can crash","description":"A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nIf an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.\n\nThis issue affects Junos OS:\n\n\n\n  *  All versions before 20.4R3-S9,\n  *  21.2 versions before 21.2R3-S5, \n  *  21.3 versions before 21.3R3-S5, \n  *  21.4 versions before 21.4R3-S4,\n  *  22.1 versions before 22.1R3-S2,\n  *  22.2 versions before 22.2R3-S2,\n  *  22.3 versions before 22.3R2-S2, 22.3R3,\n  *  22.4 versions before 22.4R2.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00209,"percentile":0.1123,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-662","CWE-820"],"published":"2024-04-12T15:20:04Z","modified":"2026-06-17T07:26:51Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper networks","product":"junos os"}],"references":[{"url":"http://supportportal.juniper.net/JSA79187","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","tags":["technical-description","x_transferred","Issue Tracking"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-30387"},{"url":"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"url":"https://github.com/advisories/GHSA-h843-jc82-h6jf"}],"sources":{"cve":[{"id":"CVE-2024-30387","title":"Junos OS: ACX5448 \u0026 ACX710: Due to interface flaps the PFE process can crash","description":"A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nIf an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.\n\nThis issue affects Junos OS:\n\n\n\n  *  All versions before 20.4R3-S9,\n  *  21.2 versions before 21.2R3-S5, \n  *  21.3 versions before 21.3R3-S5, \n  *  21.4 versions before 21.4R3-S4,\n  *  22.1 versions before 22.1R3-S2,\n  *  22.2 versions before 22.2R3-S2,\n  *  22.3 versions before 22.3R2-S2, 22.3R3,\n  *  22.4 versions before 22.4R2.","status":"published","published":"2024-04-12T15:20:04.679Z","modified":"2024-08-02T01:32:07.093Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-820"],"updated_at":"2026-11-02T14:34:07.482552Z"}],"euvd":[{"id":"EUVD-2024-28308","description":"A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nIf an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.\n\nThis issue affects Junos OS:\n\n\n\n  *  All versions before 20.4R3-S9,\n  *  21.2 versions before 21.2R3-S5, \n  *  21.3 versions before 21.3R3-S5, \n  *  21.4 versions before 21.4R3-S4,\n  *  22.1 versions before 22.1R3-S2,\n  *  22.2 versions before 22.2R3-S2,\n  *  22.3 versions before 22.3R2-S2, 22.3R3,\n  *  22.4 versions before 22.4R2.","status":"published","published":"2024-04-12T15:20:04Z","modified":"2024-08-02T01:32:07Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","level":"high"}],"updated_at":"2026-11-03T03:50:24.625974Z"}],"ghsa":[{"id":"GHSA-h843-jc82-h6jf","title":"A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks...","description":"A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nIf an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.\n\nThis issue affects Junos OS:\n\nAll versions before 20.4R3-S9,\n\n21.2 versions before 21.2R3-S5, \n\n21.3 versions before 21.3R3-S5, \n\n21.4 versions before 21.4R3-S4,\n\n22.1 versions before 22.1R3-S2,\n\n22.2 versions before 22.2R3-S2,\n\n22.3 versions before 22.3R2-S2, 22.3R3,\n\n22.4 versions before 22.4R2.","status":"published","published":"2024-04-12T18:33:26Z","modified":"2025-02-06T21:32:05Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-662","CWE-820"],"updated_at":"2026-11-02T14:59:49.339987Z"}],"nvd":[{"id":"CVE-2024-30387","description":"A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nIf an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.\n\nThis issue affects Junos OS:\n\n\n\n  *  All versions before 20.4R3-S9,\n  *  21.2 versions before 21.2R3-S5, \n  *  21.3 versions before 21.3R3-S5, \n  *  21.4 versions before 21.4R3-S4,\n  *  22.1 versions before 22.1R3-S2,\n  *  22.2 versions before 22.2R3-S2,\n  *  22.3 versions before 22.3R2-S2, 22.3R3,\n  *  22.4 versions before 22.4R2.","status":"published","published":"2024-04-12T16:15:37.867Z","modified":"2026-06-17T07:26:51.94Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-820","CWE-662"],"updated_at":"2026-11-02T14:09:50.299382Z"}]}}