{"id":"CVE-2023-44177","aliases":["EUVD-2023-48536","GHSA-pwfx-qrrf-76cp"],"status":"published","title":"Junos OS and Junos OS Evolved: Stack overflow vulnerability in CLI command processing","description":"A Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and Junos EVO allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.\n\nRepeated actions by the attacker will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects Juniper Networks:\n\nJunos OS:\n\n\n\n  *  All versions prior to 19.1R3-S10;\n  *  19.2 versions prior to 19.2R3-S7;\n  *  19.3 versions prior to 19.3R3-S8;\n  *  19.4 versions prior to 19.4R3-S12;\n  *  20.2 versions prior to 20.2R3-S8;\n  *  20.4 versions prior to 20.4R3-S8;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  All versions prior to 20.4R3-S8-EVO;\n  *  21.2 versions prior to 21.2R3-S6-EVO;\n  *  21.3 versions prior to 21.3R3-S5-EVO;\n  *  21.4 versions prior to 21.4R3-S4-EVO;\n  *  22.1 versions prior to 22.1R3-S3-EVO;\n  *  22.2 versions prior to 22.2R3-S1-EVO;\n  *  22.3 versions prior to 22.3R3-EVO;\n  *  22.4 versions prior to 22.4R2-EVO.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00173,"percentile":0.0687,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2023-10-12T23:00:43Z","modified":"2026-06-17T06:27:03Z","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/JSA73140","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-44177"},{"url":"https://github.com/advisories/GHSA-pwfx-qrrf-76cp"}],"sources":{"cve":[{"id":"CVE-2023-44177","title":"Junos OS and Junos OS Evolved: Stack overflow vulnerability in CLI command processing","description":"\nA Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and Junos EVO allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.\n\nRepeated actions by the attacker will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects Juniper Networks:\n\nJunos OS:\n\n\n\n  *  All versions prior to 19.1R3-S10;\n  *  19.2 versions prior to 19.2R3-S7;\n  *  19.3 versions prior to 19.3R3-S8;\n  *  19.4 versions prior to 19.4R3-S12;\n  *  20.2 versions prior to 20.2R3-S8;\n  *  20.4 versions prior to 20.4R3-S8;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  All versions prior to 20.4R3-S8-EVO;\n  *  21.2 versions prior to 21.2R3-S6-EVO;\n  *  21.3 versions prior to 21.3R3-S5-EVO;\n  *  21.4 versions prior to 21.4R3-S4-EVO;\n  *  22.1 versions prior to 22.1R3-S3-EVO;\n  *  22.2 versions prior to 22.2R3-S1-EVO;\n  *  22.3 versions prior to 22.3R3-EVO;\n  *  22.4 versions prior to 22.4R2-EVO.\n\n\n\n\n\n\n","status":"published","published":"2023-10-12T23:00:43.889Z","modified":"2024-09-19T13:10:23.081Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-787","CWE-121"],"updated_at":"2026-11-02T14:35:21.612665Z"}],"euvd":[{"id":"EUVD-2023-48536","description":"\nA Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and Junos EVO allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.\n\nRepeated actions by the attacker will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects Juniper Networks:\n\nJunos OS:\n\n\n\n  *  All versions prior to 19.1R3-S10;\n  *  19.2 versions prior to 19.2R3-S7;\n  *  19.3 versions prior to 19.3R3-S8;\n  *  19.4 versions prior to 19.4R3-S12;\n  *  20.2 versions prior to 20.2R3-S8;\n  *  20.4 versions prior to 20.4R3-S8;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  All versions prior to 20.4R3-S8-EVO;\n  *  21.2 versions prior to 21.2R3-S6-EVO;\n  *  21.3 versions prior to 21.3R3-S5-EVO;\n  *  21.4 versions prior to 21.4R3-S4-EVO;\n  *  22.1 versions prior to 22.1R3-S3-EVO;\n  *  22.2 versions prior to 22.2R3-S1-EVO;\n  *  22.3 versions prior to 22.3R3-EVO;\n  *  22.4 versions prior to 22.4R2-EVO.\n\n\n\n\n\n\n","status":"published","published":"2023-10-12T23:00:43Z","modified":"2024-09-19T13:10:23Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:28:19.564867Z"}],"ghsa":[{"id":"GHSA-pwfx-qrrf-76cp","title":"\nA Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and...","description":"\nA Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and Junos EVO allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.\n\nRepeated actions by the attacker will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects Juniper Networks:\n\nJunos OS:\n\n\n\n  *  All versions prior to 19.1R3-S10;\n  *  19.2 versions prior to 19.2R3-S7;\n  *  19.3 versions prior to 19.3R3-S8;\n  *  19.4 versions prior to 19.4R3-S12;\n  *  20.2 versions prior to 20.2R3-S8;\n  *  20.4 versions prior to 20.4R3-S8;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  All versions prior to 20.4R3-S8-EVO;\n  *  21.2 versions prior to 21.2R3-S6-EVO;\n  *  21.3 versions prior to 21.3R3-S5-EVO;\n  *  21.4 versions prior to 21.4R3-S4-EVO;\n  *  22.1 versions prior to 22.1R3-S3-EVO;\n  *  22.2 versions prior to 22.2R3-S1-EVO;\n  *  22.3 versions prior to 22.3R3-EVO;\n  *  22.4 versions prior to 22.4R2-EVO.\n\n\n\n\n\n\n","status":"published","published":"2023-10-13T00:30:19Z","modified":"2024-04-04T08:36:39Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:56:59.652212Z"}],"nvd":[{"id":"CVE-2023-44177","description":"\nA Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and Junos EVO allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.\n\nRepeated actions by the attacker will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects Juniper Networks:\n\nJunos OS:\n\n\n\n  *  All versions prior to 19.1R3-S10;\n  *  19.2 versions prior to 19.2R3-S7;\n  *  19.3 versions prior to 19.3R3-S8;\n  *  19.4 versions prior to 19.4R3-S12;\n  *  20.2 versions prior to 20.2R3-S8;\n  *  20.4 versions prior to 20.4R3-S8;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S4;\n  *  22.1 versions prior to 22.1R3-S3;\n  *  22.2 versions prior to 22.2R3-S1;\n  *  22.3 versions prior to 22.3R3;\n  *  22.4 versions prior to 22.4R2.\n\n\n\n\nJunos OS Evolved:\n\n\n\n  *  All versions prior to 20.4R3-S8-EVO;\n  *  21.2 versions prior to 21.2R3-S6-EVO;\n  *  21.3 versions prior to 21.3R3-S5-EVO;\n  *  21.4 versions prior to 21.4R3-S4-EVO;\n  *  22.1 versions prior to 22.1R3-S3-EVO;\n  *  22.2 versions prior to 22.2R3-S1-EVO;\n  *  22.3 versions prior to 22.3R3-EVO;\n  *  22.4 versions prior to 22.4R2-EVO.\n\n\n\n\n\n\n","status":"published","published":"2023-10-13T00:15:11.68Z","modified":"2026-06-17T06:27:03.273Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:08:37.83429Z"}]}}