Medium 6.5Published May 13, 2026

CVE-2026-40462iControl REST and tmsh vulnerability

Updated under an hour ago (Oct 26, 2026, 5:50 PM ET)

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It affects F5 BIG-IP and 21 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for F5 BIG-IP

Exploited in the last 30 days

Incorrect permission assignment vulnerabilities exist in iControl REST and TMOS shell (tmsh) undisclosed command which may allow an authenticated attacker to view sensitive information. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-732
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: f5
NVD analysis: Analyzed
Record last updated: May 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

F5 BIG-IP f5:big_ip (from the name)	from 21.1.0 not affected; from 21.0.0 before 21.0.0.1; from 17.5.0 before 17.5.1.4; from 17.1.0 before 17.1.3.1; from 16.1.0	CNA record
f5 big-ip_access_policy_manager f5:big-ip_access_policy_manager	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_advanced_firewall_manager f5:big-ip_advanced_firewall_manager	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_advanced_web_application_firewall f5:big-ip_advanced_web_application_firewall	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_analytics f5:big-ip_analytics	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_application_acceleration_manager f5:big-ip_application_acceleration_manager	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_application_security_manager f5:big-ip_application_security_manager	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_application_visibility_and_reporting f5:big-ip_application_visibility_and_reporting	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_automation_toolchain f5:big-ip_automation_toolchain	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
f5 big-ip_carrier-grade_nat f5:big-ip_carrier-grade_nat	from 17.1.0 through 17.1.3; from 17.5.0 through 17.5.1; 21.0.0; from 16.1.0 through 16.1.6	NVD
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References

References

https://my.f5.com/manage/s/article/K000156581	vendor-advisory, patch, mitigation

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.