CVE-2026-40061
Analyzed
Analyzed - Analysis Complete
BaseFortify
Vulnerability report for CVE-2026-40061, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-05-13
Last updated on: 2026-06-29
Assigner: F5 Networks
Description
Description
When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command that may allow an authenticated attacker with the Resource Administrator or Administrator role to execute arbitrary system commands with higher privileges. In Appliance mode deployments, a successful exploit can allow the attacker to cross a security boundary. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| f5 | big-ip_domain_name_system | From 17.5.0 (inc) to 17.5.1 (inc) |
| f5 | big-ip_domain_name_system | From 16.1.0 (inc) to 16.1.6 (inc) |
| f5 | big-ip_domain_name_system | 21.0.0 |
| f5 | big-ip_domain_name_system | From 17.1.0 (inc) to 17.1.3 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-77 | The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. |
