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Medium 6.5Published Oct 9, 2025

CVE-2025-59980Junos OS: When a user with the name ftp or anonymous is configured unauthenticated filesystem access is allowed

Updated under an hour ago ()

Does this affect you?

It affects Juniper Networks Junos OS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE)
CWE-305
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
juniper
NVD analysis
Analyzed
Record last updated
Oct 10, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Juniper Networks Junos OS
juniper_networks:junos_os (from the name)
before 22.4R3-S8; from 23.2 before 23.2R2-S3; from 23.4 before 23.4R2
CNA record
juniper junos
juniper:junos
before 22.4; 22.4; 22.4; 22.4; 22.4; 22.4; 22.4; 22.4; and 19 more ranges
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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