CVE-2025-59980: junos — Fix

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.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-305 CWE-305

Affected Products

Vendor	Product	Versions
juniper	junos	< 22.4
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All
juniper	junos	All

References

Advisories & Patches

https://supportportal.juniper.net/JSA103167

Frequently Asked Questions

What is CVE-2025-59980? +

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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-59980? +

CVE-2025-59980 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-59980? +

CVE-2025-59980 affects products from juniper, specifically: junos. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-59980? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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