CVE-2025-36546

F5OS Appliance Mode vulnerability

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.

Category

9.2
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory f5.com
Affected: F5 F5OS - Appliance
Affected: F5 F5OS - Chassis
Published at:
Updated at:

References

Link Tags
https://my.f5.com/manage/s/article/K000140574 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-36546?
CVE-2025-36546 has been scored as a critical severity vulnerability.
How to fix CVE-2025-36546?
To fix CVE-2025-36546, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-36546 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-36546 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-36546?
CVE-2025-36546 affects F5 F5OS - Appliance, F5 F5OS - Chassis.
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