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