# CVE-2026-41957: F5 BIG-IP and BIG-IQ RCE in Configuration utility

Source: https://junglewise.ai/threats/cve-2026-41957-f5-big-ip-and-big-iq-rce-in-configuration-utility  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-13. Updated: 2026-06-23  
License: CC BY 4.0 with a link back

CVE-2026-41957 · Severity: high · CVSS 8.8 · Published 2026-05-13

F5 BIG-IP and BIG-IQ devices, which are used for network traffic management and security, contain a vulnerability in their management interface. An attacker with low-level login credentials could take complete control of the device remotely. This could lead to the interception of network traffic, data theft, or a total disruption of network services.

Technologies: [F5 BIG-IP](https://junglewise.ai/threats/technologies/big-ip), [F5 BIG-IQ](https://junglewise.ai/threats/technologies/big-iq), [F5 Big-Iq Centralized Management](https://junglewise.ai/threats/technologies/big-iq-centralized-management). Vendors: [F5](https://junglewise.ai/threats/vendors/f5).

## Quick answers

**Is CVE-2026-41957 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-41957 being exploited in the wild.

**How severe is CVE-2026-41957?** High severity, with a CVSS score of 8.8, published 13 May 2026.

**Which products and versions are affected?** F5 BIG-IP 16.1.0 - 16.1.6, 17.5.0 - 17.5.1; F5 Big-Iq Centralized Management 8.4.0.

**Is there a fix for CVE-2026-41957?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-41957 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-41957?** Check whether you run F5 BIG-IP, F5 BIG-IQ or F5 Big-Iq Centralized Management at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An authenticated remote code execution (RCE) vulnerability exists in the BIG-IP and BIG-IQ Configuration utility (management interface). The vulnerability is rooted in the deserialization of untrusted data (CWE-502). An attacker with network access to the management port and valid low-privileged credentials can exploit this flaw to execute arbitrary commands on the underlying operating system. The vulnerability affects multiple BIG-IP modules including APM, AFM, and ASM. F5 has released a vendor advisory (K000156761) detailing mitigations and affected versions.

## Affected products

- F5 BIG-IP 16.1.0 - 16.1.6, 17.5.0 - 17.5.1
- F5 BIG-IQ Centralized Management 8.4.0

## Timeline

- 2026-05-13: advisory: Initial publication of the vulnerability advisory

## References

- [https://my.f5.com/manage/s/article/K000156761](https://my.f5.com/manage/s/article/K000156761)

## Related threats

- [F5 BIG-IP privilege escalation in TMUI](https://junglewise.ai/threats/cve-2026-66842-f5-big-ip-privilege-escalation-in-tmui)
- [F5 BIG-IP Configuration utility error message spoofing](https://junglewise.ai/threats/cve-2026-63020-f5-big-ip-configuration-utility-error-message-spoofing)
- [F5 BIG-IP denial of service in HTTP/2 profile memory management](https://junglewise.ai/threats/cve-2026-59762-f5-big-ip-denial-of-service-in-http-2-profile-memory-management)
- [F5 BIG-IP and BIG-IQ incorrect permission assignment in tmsh and iControl REST](https://junglewise.ai/threats/cve-2026-42937-f5-big-ip-and-big-iq-incorrect-permission-assignment-in-tmsh-and)
- [F5 BIG-IP Appliance mode restriction bypass via path traversal](https://junglewise.ai/threats/cve-2026-42930-f5-big-ip-appliance-mode-restriction-bypass-via-path-traversal)