SB2025101388 - Authentication bypass in Junos OS FTP server
Published: October 13, 2025
Security Bulletin ID
SB2025101388
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper authentication (CVE-ID: CVE-2025-59980)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to bypass authentication process.
The vulnerability exists due to an error in the FTP server. A remote user can bypass authentication process and get limited read-write access to files on the device.
Remediation
Install update from vendor's website.