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Vulnerability · Published Jul 11, 2025 · Assigned by juniper

CVE-2025-52963Junos OS: A low-privileged user can disable an interface

Medium 5.5

In plain English

A medium-severity improper access control in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 95.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Improper Access Control vulnerability in the User Interface (UI) of Juniper Networks Junos OS allows a local, low-privileged attacker to bring down an interface, leading to a Denial-of-Service. Users with "view" permissions can run a specific request interface command which allows the user to shut down the interface. This issue affects Junos OS:  * All versions before 21.2R3-S9, * from 21.4 before 21.4R3-S11, * from 22.2 before 22.2R3-S7, * from 22.4 before 22.4R3-S7, * from 23.2 before 23.2R2-S4, * from 23.4 before 23.4R2-S5,   * from 24.2 before 24.2R2-S1, * from 24.4 before 24.4R1-S3, 24.4R2.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS 0 – before 21.2R3-S921.4 – before 21.4R3-S1122.2 – before 22.2R3-S722.4 – before 22.4R3-S723.2 – before 23.2R2-S423.4 – before 23.4R2-S524.2 – before 24.2R2-S124.4 – before 24.4R1-S3, 24.4R2

Weakness: CWE-284 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References