8.8

CVE-2026-66842

BIG-IP and BIG-IQ Configuration utility vulnerability

BIG-IP has a vulnerability where an authenticated user of any role may be able to create administrative user accounts through an undisclosed request to Traffic Management User Interface (TMUI).




Impact:

This vulnerability may allow an authenticated attacker with network access to the BIG-IP management interface to escalate privileges by creating administrative accounts on the BIG-IP system. There is no data plane exposure; this is a control plane issue only.




Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerF5
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Produkt BIG-IP
Default Statusunknown
Version 21.1.0
Version < 21.1.0.1
Status affected
Version 21.0.0
Version < 21.0.0.3
Status affected
Version 17.5.0
Version < 17.5.1.8
Status affected
Version 17.1.0
Version < 17.1.3.4
Status affected
HerstellerF5
≫
Produkt BIG-IQ
Default Statusunaffected
Version 8.4.0
Version < 8.4.2.1
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.161
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
F5 8.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
F5 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-918 Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

https://my.f5.com/manage/s/article/K000162521