by Kastro
Paper/Archive/CVE-2025-36546

CVE-2025-36546

F5 F5OS - Appliance — F5OS Appliance Mode vulnerability

EPSS 0.4%CVSS 9.2
critical.is priorityof 100
35
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 38.1.381 × 207.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
F5OS - Appliance1.7.0 – < 1.8.01.8.0CNA
F5OS - Appliance1.5.1 – < 1.5.31.5.3CNA
F5OS - Chassis1.6.0 – < 1.8.01.8.0CNA

Scores by source

f5 (CNA)9.2CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
f5 (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorymy.f5.com/manage/s/article/K000140574