{"id":"CVE-2025-52988","aliases":["EUVD-2025-21167","GHSA-w3xh-4xq9-g5fm"],"status":"published","title":"Junos OS and Junos OS Evolved: Privilege escalation to root via CLI command 'request system logout'","description":"An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.\n\nWhen a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device.\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S6,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3-S6,\n  *  23.2 versions before 23.2R2-S1,\n  *  23.4 versions before 23.4R1-S2, 23.4R2;\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  all versions before 22.4R3-S6-EVO,\n  *  23.2-EVO versions before 23.2R2-S1-EVO,\n  *  23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.","severity":{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/RE:M","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00438,"percentile":0.38592,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2025-07-11T15:11:24Z","modified":"2026-06-17T09:37:25Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper","product":"junos_os_evolved"},{"vendor":"juniper networks","product":"junos os"},{"vendor":"juniper networks","product":"junos os evolved"}],"references":[{"url":"https://supportportal.juniper.net/JSA100095","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52988"},{"url":"https://github.com/advisories/GHSA-w3xh-4xq9-g5fm"}],"sources":{"cve":[{"id":"CVE-2025-52988","title":"Junos OS and Junos OS Evolved: Privilege escalation to root via CLI command 'request system logout'","description":"An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.\n\nWhen a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device.\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S6,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3-S6,\n  *  23.2 versions before 23.2R2-S1,\n  *  23.4 versions before 23.4R1-S2, 23.4R2;\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  all versions before 22.4R3-S6-EVO,\n  *  23.2-EVO versions before 23.2R2-S1-EVO,\n  *  23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.","status":"published","published":"2025-07-11T15:11:24.991Z","modified":"2026-02-26T17:50:44.376Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/RE:M","level":"high","assessor":"cna"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:32:31.631102Z"}],"euvd":[{"id":"EUVD-2025-21167","description":"An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.\n\nWhen a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device.\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S6,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3-S6,\n  *  23.2 versions before 23.2R2-S1,\n  *  23.4 versions before 23.4R1-S2, 23.4R2;\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  all versions before 22.4R3-S6-EVO,\n  *  23.2-EVO versions before 23.2R2-S1-EVO,\n  *  23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.","status":"published","published":"2025-07-11T15:11:24Z","modified":"2026-02-26T17:50:44Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/RE:M","level":"high"}],"updated_at":"2026-11-02T19:48:19.036418Z"}],"ghsa":[{"id":"GHSA-w3xh-4xq9-g5fm","title":"An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')...","description":"An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.\n\nWhen a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device.\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S6,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3-S6,\n  *  23.2 versions before 23.2R2-S1,\n  *  23.4 versions before 23.4R1-S2, 23.4R2;\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  all versions before 22.4R3-S6-EVO,\n  *  23.2-EVO versions before 23.2R2-S1-EVO,\n  *  23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.","status":"published","published":"2025-07-11T18:30:34Z","modified":"2025-07-11T18:30:40Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:Y/R:U/V:X/RE:M/U:X","level":"high"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:02:59.952815Z"}],"nvd":[{"id":"CVE-2025-52988","description":"An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.\n\nWhen a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device.\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S8,\n  *  22.2 versions before 22.2R3-S6,\n  *  22.3 versions before 22.3R3-S3,\n  *  22.4 versions before 22.4R3-S6,\n  *  23.2 versions before 23.2R2-S1,\n  *  23.4 versions before 23.4R1-S2, 23.4R2;\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  all versions before 22.4R3-S6-EVO,\n  *  23.2-EVO versions before 23.2R2-S1-EVO,\n  *  23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.","status":"published","published":"2025-07-11T16:15:26.187Z","modified":"2026-06-17T09:37:25.307Z","cvss":[{"version":"4.0","score":8.4,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:Y/R:U/V:X/RE:M/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:11:18.285862Z"}]}}