Description

On an F5OS system, if the root user had previously configured the system to allow login via SSH key-based authentication, and then enabled Appliance Mode; access via SSH key-based authentication is still allowed. For an attacker to exploit this vulnerability they must obtain the root user's SSH private key.  

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Classification

CVE ID: CVE-2025-36546

CVSS Base Severity: HIGH

CVSS Base Score: 8.1

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

Affected Products

Vendor: F5

Product: F5OS - Appliance, F5OS - Chassis

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.12% (probability of being exploited)

EPSS Percentile: 31.9% (scored less or equal to compared to others)

EPSS Date: 2025-06-05 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-36546
https://my.f5.com/manage/s/article/K000140574

Timeline