Junos OS and Junos OS Evolved: Unix socket used to...

5.5 / 10

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Description

An Incorrect Permission Assignment for Critical Resource vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged user to write to the Unix socket used to manage the jdhcpd process, resulting in complete control over the resource.

This vulnerability allows any low-privileged user logged into the system to connect to the Unix socket and issue commands to manage the DHCP service, in essence, taking administrative control of the local DHCP server or DHCP relay.

This issue affects:
Junos OS:
* all versions before 21.2R3-S10,
* all versions of 22.2,
* from 21.4 before 21.4R3-S12,
* from 22.4 before 22.4R3-S8,
* from 23.2 before 23.2R2-S5,
* from 23.4 before 23.4R2-S6,
* from 24.2 before 24.2R2-S2,
* from 24.4 before 24.4R2,
* from 25.2 before 25.2R1-S1, 25.2R2;

Junos OS Evolved:
* all versions before 22.4R3-S8-EVO,
* from 23.2 before 23.2R2-S5-EVO,
* from 23.4 before 23.4R2-S6-EVO,
* from 24.2 before 24.2R2-S2-EVO,
* from 24.4 before 24.4R2-EVO,
* from 25.2 before 25.2R1-S1-EVO, 25.2R2-EVO.

Basic Information

ID CVE-2025-59961

Source juniper

Published Jan 15, 2026 at 20:14

Affected Product

Vendor Juniper Networks

Product Junos OS

Affected Versions Juniper Networks Junos OS 0
Juniper Networks Junos OS 21.4
Juniper Networks Junos OS 22.2
Juniper Networks Junos OS 22.4
Juniper Networks Junos OS 23.2
Juniper Networks Junos OS 23.4
Juniper Networks Junos OS 24.2
Juniper Networks Junos OS 24.4
Juniper Networks Junos OS 25.2
Juniper Networks Junos OS Evolved 0
Juniper Networks Junos OS Evolved 23.2
Juniper Networks Junos OS Evolved 23.4
Juniper Networks Junos OS Evolved 24.2
Juniper Networks Junos OS Evolved 24.4
Juniper Networks Junos OS Evolved 25.2

CWE Classification

CWE-732

References

{
    "lastseen": "",
    "description": "An Incorrect Permission Assignment for Critical Resource vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged user to write to the Unix socket used to manage the jdhcpd process, resulting in complete control over the resource.\n\nThis vulnerability allows any low-privileged user logged into the system to connect to the Unix socket and issue commands to manage the DHCP service, in essence, taking administrative control of the local DHCP server or DHCP relay.\n\nThis issue affects:\n Junos OS: \n  *  all versions before 21.2R3-S10,\n  *  all versions of 22.2,\n  *  from 21.4 before 21.4R3-S12,\n  *  from 22.4 before 22.4R3-S8,\n  *  from 23.2 before 23.2R2-S5, \n  *  from 23.4 before 23.4R2-S6, \n  *  from 24.2 before 24.2R2-S2, \n  *  from 24.4 before 24.4R2, \n  *  from 25.2 before 25.2R1-S1, 25.2R2; \n\n\n\nJunos OS Evolved: \n  *  all versions before 22.4R3-S8-EVO, \n  *  from 23.2 before 23.2R2-S5-EVO, \n  *  from 23.4 before 23.4R2-S6-EVO, \n  *  from 24.2 before 24.2R2-S2-EVO, \n  *  from 24.4 before 24.4R2-EVO, \n  *  from 25.2 before 25.2R1-S1-EVO, 25.2R2-EVO.",
    "published": "2026-01-15T20:14:43.508Z",
    "modified": "2026-01-15T20:14:43.508Z",
    "type": "cve",
    "title": "Junos OS and Junos OS Evolved: Unix socket used to control the jdhcpd process is world-writable",
    "source": "juniper",
    "references": "https://supportportal.juniper.net/\nhttps://kb.juniper.net/JSA103150",
    "id": "CVE-2025-59961",
    "bulletinFamily": "",
    "cwe": [
        "CWE-732"
    ],
    "cvelist": null,
    "sourceData": "Juniper Networks Junos OS 0\nJuniper Networks Junos OS 21.4\nJuniper Networks Junos OS 22.2\nJuniper Networks Junos OS 22.4\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 25.2\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\nJuniper Networks Junos OS Evolved 25.2",
    "sourceHref": "",
    "cvss": {
        "score": 5.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
        "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
}

Junos OS and Junos OS Evolved: Unix socket used to control the jdhcpd process is world-writable_CVE-2025-59961