CVE-2026-40435
BIG-IP httpd access control vulnerability
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
When configured, IP-based access restrictions for httpd do not cover all endpoints, which may allow connections from blocked addresses. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
| CWE | CWE-420 |
| 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 medium 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:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
F5 / BIG-IP
17.5.0 < 17.5.1.4 17.1.0 < 17.1.3.1 16.1.0 < *
Credits
F5