Origin validation error in Juniper Junos OS - CVE-2025-59957
Published: October 13, 2025
Vulnerability identifier: #VU116939
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-59957
CWE-ID: CWE-346
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS
Juniper Junos OS
Detailed vulnerability description
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to origin validation error error in an insufficient protected file. A local non-authenticated attacker can the device to create a backdoor which allows complete control of the system.
How to mitigate CVE-2025-59957
Install updates from vendor's website.