CVE-2025-59980CWE-305

CVE-2025-59980

Medium · published October 9, 2025

CVSS v3.1
6.5
EPSS
0%
Percentile
20.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00292 · 20.6th percentile
Weakness
CWE-305 · Authentication Bypass by Primary Weakness
Published
2025-10-09T21:15Z
Affected products (27)
ProductVersionsFixed in
juniper/junos< 22.422.4
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References (1)
https://supportportal.juniper.net/JSA103167 · [email protected]
EPSS history
Timeline
  • 09 OCT 16:05Z
    Junos OS: When a user with the name ftp or anonymous is configured unauthenticated filesystem access is allowed
    cvelistv5