CVE-2025-59980
Junos OS: When a user with the name ftp or anonymous is configured unauthenticated filesystem access is allowed
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 9, 2025
- Updated
- Oct 10, 2025
- Reserved
- Sep 23, 2025
Description
An Authentication Bypass by Primary Weakness
in the FTP server of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to get limited read-write access to files on the device. When the FTP server is enabled and a user named "ftp" or "anonymous" is configured, that user can login without providing the configured password and then has read-write access to their home directory.
This issue affects Junos OS:
* all versions before 22.4R3-S8, * 23.2 versions before 23.2R2-S3, * 23.4 versions before 23.4R2.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/AU:Y/RE:M | juniper |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | juniper |
Weaknesses
- CWE-305 Authentication Bypass by Primary Weakness
Affected Products
| Product | Versions |
|---|---|
Junos OSJuniper Networks |
|
References
- https://supportportal.juniper.net/JSA103167vendor-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.