SB2025101399 - Origin validation error in Juniper Junos OS
Published: October 13, 2025
Security Bulletin ID
SB2025101399
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Origin validation error (CVE-ID: CVE-2025-59957)
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.
Remediation
Install update from vendor's website.