On F5 BIG-IP versions 13.0.0 - 13.1.0.3, attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certificate. This vulnerability affects virtual servers associated with Client SSL profile which enables the use of client certificate authentication. Client certificate authentication is not enabled by default in Client SSL profile. There is no control plane exposure.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 13 products from f5, from f5, from f5 and 10 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2018-03-22T18:29:00.510
2026-06-17T02:00:25.437
Modified
CVSSv3.0: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | f5 | big-ip_access_policy_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_analytics | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_application_security_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_domain_name_system | ≤ 13.1.0.4 | Yes |
| Application | f5 | big-ip_edge_gateway | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_global_traffic_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_link_controller | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_local_traffic_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_webaccelerator | < 13.1.0.4 | Yes |
| Application | f5 | big-ip_websafe | 1.0.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For f5's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.