CVE-2018-5500
5.9 · MEDIUMOverview
CVE-2018-5500 is a medium-severity vulnerability affecting f5 big-ip_local_traffic_manager. It was published on March 1, 2018 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.
Remediation
Check the references section for vendor advisories and patches from f5. Update big-ip_local_traffic_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| f5 | big-ip_local_traffic_manager | 11.6.1 | Affected |
| f5 | big-ip_application_acceleration_manager | 11.6.1 | Affected |
| f5 | big-ip_advanced_firewall_manager | 11.6.1 | Affected |
| f5 | big-ip_analytics | 11.6.1 | Affected |
| f5 | big-ip_access_policy_manager | 11.6.1 | Affected |
| f5 | big-ip_application_security_manager | 11.6.1 | Affected |
| f5 | big-ip_dns | 11.6.1 | Affected |
| f5 | big-ip_link_controller | 11.6.1 | Affected |
| f5 | big-ip_policy_enforcement_manager | 11.6.1 | Affected |
| f5 | big-ip_websafe | 11.6.1 | Affected |
| f5 | big-ip_edge_gateway | 11.6.1 | Affected |
| f5 | big-ip_global_traffic_manager | 11.6.1 | Affected |
| f5 | big-ip_webaccelerator | 11.6.1 | Affected |
Frequently Asked Questions
What is CVE-2018-5500?
CVE-2018-5500 is a medium-severity vulnerability affecting f5 big-ip_local_traffic_manager. It was published on March 1, 2018 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
How severe is CVE-2018-5500?
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-5500?
Check the references section for vendor advisories and patches from f5. Update big-ip_local_traffic_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-5500?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-5500 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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