CVE-2026-41959 PUBLISHED

iControl and tmsh REST vulnerability

Assigner: f5
Reserved: 30.04.2026 Published: 13.05.2026 Updated: 13.05.2026

Incorrect permission assignment vulnerabilities exist in BIG-IP and BIG-IQ TMOS Shell (tmsh) network diagnostics commands and in BIG-IP iControl REST. These vulnerabilities may allow an authenticated attacker to view the network status of destination systems.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

BIG-IP

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6.8

BIG-IQ

Product Status

Vendor F5
Product BIG-IP
Versions Default: unknown
  • unaffected from 21.1.0 to * (excl.)
  • affected from 21.0.0 to 21.0.0.2 (excl.)
  • affected from 17.5.0 to 17.5.1.6 (excl.)
  • affected from 17.1.0 to 17.1.3.2 (excl.)
  • affected from 16.1.0 to * (excl.)
Vendor F5
Product BIG-IQ
Versions Default: unknown
  • affected from 8.4.0 to * (excl.)

Credits

  • F5 finder

References

Problem Types

  • CWE-732 Incorrect Permission Assignment for Critical Resource CWE