CVE-2025-43878

8.3 highEPSS 0.2%

High (8.3) in f5. EPSS 0.2% chance of exploitation in the next 30 days.

When running in Appliance mode, an authenticated attacker assigned the Administrator or Resource Administrator role may be able to bypass Appliance mode restrictions utilizing system diagnostics tcpdump command utility on a F5OS-C/A system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Severity

CVSS 4.0

8.3 high

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

CVSS 3.1

6.0 medium

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-31)
CWEs: CWE-149, CWE-1286
Published: 2025-05-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

f5:f5os-a
f5:f5os-c

References

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

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