Vulnerability · Published May 7, 2025 · Assigned by f5

CVE-2025-36546F5OS Appliance Mode vulnerability

High 8.1

In plain English

A high-severity incorrect authorization in F5OS - Appliance from F5. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 61.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
F5	F5OS - Appliance	1.7.0 – before 1.8.01.5.1 – before 1.5.3
F5	F5OS - Chassis	1.6.0 – before 1.8.0

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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