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HIGH · 8.1

CVE-2026-20916

An authenticated iControl REST user with low privileges can create or modify arbitrary files through an undisclosed iControl REST endpoint on the BIG-IQ system.  Note: Software versions which have rea...

Vulnerability Description

An authenticated iControl REST user with low privileges can create or modify arbitrary files through an undisclosed iControl REST endpoint on the BIG-IQ system.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
F5Big-Iq Centralized Management8.4.0

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2026-20916?

CVE-2026-20916 is a vulnerability with a CVSS score of 8.1 (HIGH). An authenticated iControl REST user with low privileges can create or modify arbitrary files through an undisclosed iControl REST endpoint on the BIG-IQ system.  Note: Software versions which have rea...

How severe is CVE-2026-20916?

CVE-2026-20916 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20916?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Iq Centralized Management.