{"id":"CVE-2024-30392","aliases":["EUVD-2024-28313","GHSA-jqhc-3v3m-gjx4"],"status":"published","title":"Junos OS: MX Series with SPC3 and MS-MPC/-MIC: When URL filtering is enabled and a specific URL request is received a flowd crash occurs","description":"A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJunos OS:\n\n\n\n  *  all versions before 21.2R3-S6,\n\n  *  from 21.3 before 21.3R3-S5,\n\n  *  from 21.4 before 21.4R3-S5,\n\n  *  from 22.1 before 22.1R3-S3,\n\n  *  from 22.2 before 22.2R3-S1,\n\n  *  from 22.3 before 22.3R2-S2, 22.3R3,\n\n  *  from 22.4 before 22.4R2-S1, 22.4R3.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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":"2026-11-10","score":0.00694,"percentile":0.53268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2024-04-12T15:07:48Z","modified":"2026-06-17T07:26:52Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper","product":"junos_os"},{"vendor":"juniper networks","product":"junos os"}],"references":[{"url":"https://supportportal.juniper.net/JSA79092","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/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","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-30392"},{"url":"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"url":"https://github.com/advisories/GHSA-jqhc-3v3m-gjx4"}],"sources":{"cve":[{"id":"CVE-2024-30392","title":"Junos OS: MX Series with SPC3 and MS-MPC/-MIC: When URL filtering is enabled and a specific URL request is received a flowd crash occurs","description":"A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJunos OS:\n\n\n\n  *  all versions before 21.2R3-S6,\n\n  *  from 21.3 before 21.3R3-S5,\n\n  *  from 21.4 before 21.4R3-S5,\n\n  *  from 22.1 before 22.1R3-S3,\n\n  *  from 22.2 before 22.2R3-S1,\n\n  *  from 22.3 before 22.3R2-S2, 22.3R3,\n\n  *  from 22.4 before 22.4R2-S1, 22.4R3.","status":"published","published":"2024-04-12T15:07:48.287Z","modified":"2024-08-02T01:32:07.121Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:34:07.831255Z"}],"euvd":[{"id":"EUVD-2024-28313","description":"A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJunos OS:\n\n\n\n  *  all versions before 21.2R3-S6,\n\n  *  from 21.3 before 21.3R3-S5,\n\n  *  from 21.4 before 21.4R3-S5,\n\n  *  from 22.1 before 22.1R3-S3,\n\n  *  from 22.2 before 22.2R3-S1,\n\n  *  from 22.3 before 22.3R2-S2, 22.3R3,\n\n  *  from 22.4 before 22.4R2-S1, 22.4R3.","status":"published","published":"2024-04-12T15:07:48Z","modified":"2024-08-02T01:32:07Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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-jqhc-3v3m-gjx4","title":"A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks...","description":"A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJunos OS:\n\n\n\n  *  all versions before 21.2R3-S6,\n\n  *  from 21.3 before 21.3R3-S5,\n\n  *  from 21.4 before 21.4R3-S5,\n\n  *  from 22.1 before 22.1R3-S3,\n\n  *  from 22.2 before 22.2R3-S1,\n\n  *  from 22.3 before 22.3R2-S2, 22.3R3,\n\n  *  from 22.4 before 22.4R2-S1, 22.4R3.","status":"published","published":"2024-04-12T18:33:27Z","modified":"2026-01-23T18:31:22Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:05:53.055975Z"}],"nvd":[{"id":"CVE-2024-30392","description":"A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).\n\nOn all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJunos OS:\n\n\n\n  *  all versions before 21.2R3-S6,\n\n  *  from 21.3 before 21.3R3-S5,\n\n  *  from 21.4 before 21.4R3-S5,\n\n  *  from 22.1 before 22.1R3-S3,\n\n  *  from 22.2 before 22.2R3-S1,\n\n  *  from 22.3 before 22.3R2-S2, 22.3R3,\n\n  *  from 22.4 before 22.4R2-S1, 22.4R3.","status":"published","published":"2024-04-12T16:15:39.04Z","modified":"2026-06-17T07:26:52.8Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:09:50.299382Z"}]}}