Quick answers
- Is CVE-2026-20916 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20916 being exploited in the wild.
- How severe is CVE-2026-20916?
- High severity, with a CVSS score of 8.1, published 13 May 2026.
- Which products and versions are affected?
- F5 BIG-IQ All versions prior to EoTS (End of Technical Support); F5 Big-Iq Centralized Management 8.4.0.
- Is there a fix for CVE-2026-20916?
- 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-2026-20916 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-20916?
- Check whether you run 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
A path traversal vulnerability (CWE-22) exists in an undisclosed iControl REST endpoint within F5 BIG-IQ Centralized Management. An authenticated attacker with low-level privileges can exploit this flaw via the network to create or modify arbitrary files on the filesystem. While the vulnerability does not directly allow data exfiltration (Confidentiality: None), it poses a high risk to system integrity and availability. The issue affects version 8.4.0 and is addressed in version 8.4.1.
Affected products
- F5 BIG-IQ Centralized Management 8.4.0
Timeline
- 2026-05-13: advisory: Initial advisory published by F5 and NVD