Missing Authentication for Critical Function in Junos OS - CVE-2025-30650
Published: May 8, 2026
Vulnerability identifier: #VU130701
CSH Severity: Low
CVSS v4: 8.4 [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]
CVE-ID: CVE-2025-30650
CWE-ID: CWE-306
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to gain root access to a Linux-based FPC.
The vulnerability exists due to missing authentication for critical function in command processing when processing commands for Linux-based line cards. A local privileged user can invoke a critical function to gain root access to a Linux-based FPC.
Only systems using Linux-based line cards running Junos OS Evolved are vulnerable.
Affected software
Junos OS
How to mitigate CVE-2025-30650
Install security update from vendor's website.
Junos OS - addressed in versions 22.4R3-S8, 23.2R2-S6, 23.4R2-S6, 24.2R2-S3, 24.4R2, 25.2R2, 25.4R1