CVE-2026-20916 — HIGH (8.1)

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

Related Weaknesses (CWE)

CWE-22

References

https://my.f5.com/manage/s/article/K000158029

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. Review vendor security bulletins for remediation guidance.