F5 BIG-IP up to 17.1.1 iControl REST Endpoint command injection

Summaryinfo

A vulnerability has been found in F5 BIG-IP up to 17.1.1 and classified as critical. This vulnerability affects unknown code of the component iControl REST Endpoint. Performing a manipulation results in command injection. This vulnerability is cataloged as CVE-2025-23239. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in F5 BIG-IP up to 17.1.1. This affects an unknown part of the component iControl REST Endpoint. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

When running in Appliance mode, and logged into a highly-privileged role, an authenticated remote command injection vulnerability exists in an undisclosed iControl REST endpoint. 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.

It is possible to read the advisory at my.f5.com. This vulnerability is uniquely identified as CVE-2025-23239 since 01/22/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/04/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 215013 (F5 Networks BIG-IP : BIG-IP iControl REST vulnerability (K000138757)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 17.1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215013). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

Version

• 17.1.0
• 17.1.1

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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