Junos OS and Junos OS Evolved: When an unsigned Python op script configuration is present, a local low privileged user can compromise the system_CVE-2026-33793

{
    "lastseen": "",
    "description": "An Execution with Unnecessary Privileges vulnerability\u00a0in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.\n\nWhen a\u00a0configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.\u00a0\n\nThis issue affects Junos OS:\u00a0\n\n  *  All versions before 22.4R3-S7,\u00a0\n  *  from 23.2 before 23.2R2-S4,\u00a0\n  *  from 23.4 before\u00a023.4R2-S6,\n  *  from 24.2 before 24.2R1-S2, 24.2R2,\u00a0\n  *  from 24.4 before 24.4R1-S2, 24.4R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n  *  All versions before 22.4R3-S7-EVO,\u00a0\n  *  from 23.2 before 23.2R2-S4-EVO,\u00a0\n  *  from 23.4 before\u00a023.4R2-S6-EVO,\n  *  from 24.2 before 24.2R2-EVO,\u00a0\n  *  from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.",
    "published": "2026-04-09T21:24:50.485Z",
    "modified": "2026-04-10T17:17:03.745Z",
    "type": "cve",
    "title": "Junos OS and Junos OS Evolved: When an unsigned Python op script configuration is present, a local low privileged user can compromise the system",
    "source": "juniper",
    "references": "https://kb.juniper.net/JSA103142",
    "id": "CVE-2026-33793",
    "bulletinFamily": "",
    "cwe": [
        "CWE-250"
    ],
    "cvelist": null,
    "sourceData": "Juniper Networks Junos OS 0\nJuniper Networks Junos OS 23.2\nJuniper Networks Junos OS 23.4\nJuniper Networks Junos OS 24.2\nJuniper Networks Junos OS 24.4\nJuniper Networks Junos OS Evolved 0\nJuniper Networks Junos OS Evolved 23.2\nJuniper Networks Junos OS Evolved 23.4\nJuniper Networks Junos OS Evolved 24.2\nJuniper Networks Junos OS Evolved 24.4",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Junos OS",
    "version": "0",
    "vendor": "Juniper Networks",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}