Authentication Bypass Vulnerability in Juniper Networks Junos OS FTP Server
CVE-2025-59980

6.9MEDIUM

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Vendor
CVE Published:
9 October 2025

Badges

👾 Exploit Exists

What is CVE-2025-59980?

An authentication bypass vulnerability exists in the FTP server of Juniper Networks' Junos OS, allowing unauthenticated attackers to gain limited read-write access to files. When the FTP server is enabled, users configured as 'ftp' or 'anonymous' can log in without a password and access their home directory, posing a significant security risk. This issue affects multiple versions of Junos OS, necessitating immediate attention from affected users.

Affected Version(s)

Junos OS 0 < 22.4R3-S8

Junos OS 23.2 < 23.2R2-S3

Junos OS 23.4 < 23.4R2

References

https://supportportal.juniper.net/JSA103167
vendor-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-59980 : Authentication Bypass Vulnerability in Juniper Networks Junos OS FTP Server