{"id":"CVE-2024-21612","aliases":["EUVD-2024-19260","GHSA-rj85-c5h6-pfrr"],"status":"published","title":"Junos OS Evolved: Specific TCP traffic causes OFP core and restart of RE","description":"An Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.\n\n\n\n\n\nThis issue affects:\n\nJuniper Networks Junos OS Evolved\n\n\n\n  *  All versions earlier than 21.2R3-S7-EVO;\n  *  21.3 versions earlier than 21.3R3-S5-EVO ;\n  *  21.4 versions earlier than 21.4R3-S5-EVO;\n  *  22.1 versions earlier than 22.1R3-S4-EVO;\n  *  22.2 versions earlier than 22.2R3-S3-EVO ;\n  *  22.3 versions earlier than 22.3R3-EVO;\n  *  22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.","severity":{"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","from":"cve"},"epss":{"day":"2026-11-11","score":0.00531,"percentile":0.45336,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-228"],"published":"2024-01-12T00:55:37Z","modified":"2026-06-17T07:09:50Z","products":[{"vendor":"juniper","product":"junos_os_evolved"},{"vendor":"juniper networks","product":"junos os evolved"}],"references":[{"url":"https://supportportal.juniper.net/JSA75753","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:N","tags":["technical-description","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21612"},{"url":"https://github.com/advisories/GHSA-rj85-c5h6-pfrr"}],"sources":{"cve":[{"id":"CVE-2024-21612","title":"Junos OS Evolved: Specific TCP traffic causes OFP core and restart of RE","description":"\n\n\n\n\nAn Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.\n\n\n\n\n\nThis issue affects:\n\nJuniper Networks Junos OS Evolved\n\n\n\n  *  All versions earlier than 21.2R3-S7-EVO;\n  *  21.3 versions earlier than 21.3R3-S5-EVO ;\n  *  21.4 versions earlier than 21.4R3-S5-EVO;\n  *  22.1 versions earlier than 22.1R3-S4-EVO;\n  *  22.2 versions earlier than 22.2R3-S3-EVO ;\n  *  22.3 versions earlier than 22.3R3-EVO;\n  *  22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.\n\n\n\n\n\n\n","status":"published","published":"2024-01-12T00:55:37.059Z","modified":"2025-06-17T21:09:20.546Z","cvss":[{"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-228"],"updated_at":"2026-11-02T14:34:05.077718Z"}],"euvd":[{"id":"EUVD-2024-19260","description":"\n\n\n\n\nAn Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.\n\n\n\n\n\nThis issue affects:\n\nJuniper Networks Junos OS Evolved\n\n\n\n  *  All versions earlier than 21.2R3-S7-EVO;\n  *  21.3 versions earlier than 21.3R3-S5-EVO ;\n  *  21.4 versions earlier than 21.4R3-S5-EVO;\n  *  22.1 versions earlier than 22.1R3-S4-EVO;\n  *  22.2 versions earlier than 22.2R3-S3-EVO ;\n  *  22.3 versions earlier than 22.3R3-EVO;\n  *  22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.\n\n\n\n\n\n\n","status":"published","published":"2024-01-12T00:55:37Z","modified":"2025-06-17T21:09:20Z","cvss":[{"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"}],"updated_at":"2026-11-02T20:32:21.531807Z"}],"ghsa":[{"id":"GHSA-rj85-c5h6-pfrr","title":"\nAn Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding...","description":"\nAn Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\n\nJuniper Networks Junos OS Evolved\n\n\n\n  *  All versions earlier than 21.2R3-S7-EVO;\n  *  21.3 versions earlier than 21.3R3-S5-EVO ;\n  *  21.4 versions earlier than 21.4R3-S5-EVO;\n  *  22.1 versions earlier than 22.1R3-S4-EVO;\n  *  22.2 versions earlier than 22.2R3-S3-EVO ;\n  *  22.3 versions earlier than 22.3R3-EVO;\n  *  22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.\n\n\n\n\n\n\n","status":"published","published":"2024-01-12T03:30:49Z","modified":"2024-01-12T03:30:55Z","cvss":[{"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-228"],"updated_at":"2026-11-02T14:55:23.490471Z"}],"nvd":[{"id":"CVE-2024-21612","description":"\n\n\n\n\nAn Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.\n\n\n\n\n\nThis issue affects:\n\nJuniper Networks Junos OS Evolved\n\n\n\n  *  All versions earlier than 21.2R3-S7-EVO;\n  *  21.3 versions earlier than 21.3R3-S5-EVO ;\n  *  21.4 versions earlier than 21.4R3-S5-EVO;\n  *  22.1 versions earlier than 22.1R3-S4-EVO;\n  *  22.2 versions earlier than 22.2R3-S3-EVO ;\n  *  22.3 versions earlier than 22.3R3-EVO;\n  *  22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.\n\n\n\n\n\n\n","status":"published","published":"2024-01-12T01:15:49.457Z","modified":"2026-06-17T07:09:50.193Z","cvss":[{"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"},{"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":"primary"}],"cwes":["CWE-228"],"updated_at":"2026-11-02T14:09:30.070039Z"}]}}