CVE-2026-20916
BIG-IQ iControl REST vulnerability
- State
- Published
- Severity
- 7.2 High
- Published
- May 13, 2026
- Updated
- May 13, 2026
- Reserved
- Jan 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.2 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N | f5 |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H | f5 |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
BIG-IQF5 |
|
References
- https://my.f5.com/manage/s/article/K000158029vendor-advisorypatch
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