CVE-2026-40631 | THREATINT

Description

An authenticated attacker with the Resource Administrator or Administrator role can modify configuration objects through iControl SOAP resulting in privilege escalation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

PUBLISHED Reserved 2026-04-30 | Published 2026-05-13 | Updated 2026-05-14 | Assigner f5

HIGH: 8.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Appliance Mode

HIGH: 8.5CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-552 Files or Directories Accessible to External Parties

Product status

Default status

unknown

21.1.0 (custom) before *

unaffected

21.0.0 (custom) before 21.0.0.2

affected

17.5.0 (custom) before 17.5.1.6

affected

17.1.0 (custom) before 17.1.3.2

affected

16.1.0 (custom) before *

affected

Credits

F5 acknowledges Adam Logue for bringing this issue to our attention and following the highest standards of coordinated disclosure. reporter

References

my.f5.com/manage/s/article/K000160979 vendor-advisory patch

cve.org (CVE-2026-40631)

nvd.nist.gov (CVE-2026-40631)

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