High severity · published May 7, 2025
CVE-2025-36546
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…
8.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
F5
F5os-a · F5
1.5.1 before 1.5.3 · source: NVD
F5
F5os-c · F5
1.6.0 through 1.6.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-36546
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-36546
Vendor Advisory
https://my.f5.com/manage/s/article/K000140574
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