CVE-2026-20916 | THREATINT

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.

PUBLISHED Reserved 2026-01-21 | Published 2026-05-13 | Updated 2026-05-13 | Assigner f5

HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

HIGH: 7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

Default status

unknown

8.4.0 (custom) before 8.4.1

affected

Credits

F5 finder

References

my.f5.com/manage/s/article/K000158029 vendor-advisory patch

cve.org (CVE-2026-20916)

nvd.nist.gov (CVE-2026-20916)

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