Two privilege escalation vulnerabilities in F5OS

Published: 2025-05-07

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2025-43878 CVE-2025-46265
CWE-ID	CWE-20 CWE-285
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	F5OS Operating systems & Components / Operating system
Vendor	F5 Networks

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU108767

Risk: Low

CVSSv4.0: 5.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-43878

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input. When running in appliance mode, an authenticated user assigned the Administrator or Resource Administrator role can bypass Appliance mode restrictions utilizing system diagnostics tcpdump command utility on a F5OS-A/C system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

F5OS: 1.5.0 - 1.6.2

CPE2.3

External links

https://my.f5.com/manage/s/article/K000139502

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper authorization

EUVDB-ID: #VU108766

Risk: Medium

CVSSv4.0: 6.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-46265

CWE-ID: CWE-285 - Improper Authorization