{"id":"CVE-2024-30405","aliases":["EUVD-2024-28326","GHSA-6gj8-fxh3-h3j9"],"status":"published","title":"Junos OS: SRX 5000 Series with SPC2: Processing of specific crafted packets when ALG is enabled causes a transit traffic Denial of Service","description":"An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).\n\nContinued receipt and processing of these specific packets will sustain the Denial of Service condition.\n\nThis issue affects:\nJuniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.\n  *  All versions earlier than 21.2R3-S7;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3;\n  *  23.2 versions earlier than 23.2R2.","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":0.0063,"percentile":0.50546,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-131"],"published":"2024-04-12T15:04:23Z","modified":"2026-06-17T07:26:54Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper networks","product":"junos os"}],"references":[{"url":"https://supportportal.juniper.net/JSA79105","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","Not Applicable"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-30405"},{"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/AU:Y/R:A/V:D/RE:L/U:Green"},{"url":"https://github.com/advisories/GHSA-6gj8-fxh3-h3j9"}],"sources":{"cve":[{"id":"CVE-2024-30405","title":"Junos OS: SRX 5000 Series with SPC2: Processing of specific crafted packets when ALG is enabled causes a transit traffic Denial of Service","description":"An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).\n\nContinued receipt and processing of these specific packets will sustain the Denial of Service condition.\n\nThis issue affects:\nJuniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.\n  *  All versions earlier than 21.2R3-S7;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3;\n  *  23.2 versions earlier than 23.2R2.","status":"published","published":"2024-04-12T15:04:23.911Z","modified":"2024-08-12T17:24:28.664Z","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-131"],"updated_at":"2026-11-02T14:34:07.831255Z"}],"euvd":[{"id":"EUVD-2024-28326","description":"An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).\n\nContinued receipt and processing of these specific packets will sustain the Denial of Service condition.\n\nThis issue affects:\nJuniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.\n  *  All versions earlier than 21.2R3-S7;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3;\n  *  23.2 versions earlier than 23.2R2.","status":"published","published":"2024-04-12T15:04:23Z","modified":"2024-08-12T17:24:28Z","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":"2026-11-03T00:56:20.205836Z"}],"ghsa":[{"id":"GHSA-6gj8-fxh3-h3j9","title":"An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000...","description":"An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).\n\nContinued receipt and processing of these specific packets will sustain the Denial of Service condition.\n\nThis issue affects:\nJuniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.\n  *  All versions earlier than 21.2R3-S7;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3;\n  *  23.2 versions earlier than 23.2R2. ","status":"published","published":"2024-04-12T15:37:22Z","modified":"2025-04-10T21:30:48Z","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-131"],"updated_at":"2026-11-02T15:01:04.319345Z"}],"nvd":[{"id":"CVE-2024-30405","description":"An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).\n\nContinued receipt and processing of these specific packets will sustain the Denial of Service condition.\n\nThis issue affects:\nJuniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.\n  *  All versions earlier than 21.2R3-S7;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3;\n  *  23.2 versions earlier than 23.2R2.","status":"published","published":"2024-04-12T15:15:25.133Z","modified":"2026-06-17T07:26:54.377Z","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-131"],"updated_at":"2026-11-02T14:09:50.299382Z"}]}}