CVE-2026-20916

BIG-IQ iControl REST vulnerability

Published May 13, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared F5
F5 big-iq
Vendors & Products F5
F5 big-iq
Type Values Removed Values Added
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.
Title BIG-IQ iControl REST vulnerability
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
f5
Published
Updated
May 13, 2026, 4:15 PM
Reserved
Jan 21, 2026, 9:33 PM
Status
Analyzed
Published
May 13, 2026, 4:16 PM
Modified
Oct 26, 2026, 2:10 PM