CVE-2026-42406
BIG-IP and BIG-IQ privilege escalation vulnerability
CVSS Score
8.7
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability exists in BIG-IP and BIG-IQ systems where a highly privileged, authenticated attacker with at least the Certificate Manager role can modify configuration objects that allow running arbitrary commands. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
| CWE | CWE-267 |
| Vendor | f5 |
| Product | big-ip |
| Published | May 13, 2026 |
| Last Updated | May 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for f5 big-ip
Be the first to know when new high vulnerabilities affecting f5 big-ip are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
F5 / BIG-IP
21.0.0 < 21.0.0.2 17.5.0 < 17.5.1.6 17.1.0 < 17.1.3.2 16.1.0 < *
F5 / BIG-IQ
8.4.0 < *
Credits
F5