F5 BIG-IP iControl REST command injection

Summaryinfo

A vulnerability identified as critical has been detected in F5 BIG-IP. This affects an unknown function of the component iControl REST Handler. Performing a manipulation results in command injection. This vulnerability was named CVE-2025-31644. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in F5 BIG-IP (affected version not known). This affects some unknown functionality of the component iControl REST Handler. 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, a command injection vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command which may allow an authenticated attacker with administrator role privileges to execute arbitrary system commands. 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.

The advisory is shared at my.f5.com. This vulnerability is uniquely identified as CVE-2025-31644 since 04/23/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/22/2025). MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 235478 (F5 Networks BIG-IP : Appliance mode BIG-IP iControl REST and tmsh vulnerability (K000148591)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (235478). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

License

• commercial

Website

• Vendor: https://f5.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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