On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
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 2 products from f5, from f5 organizations running these solutions should prioritize assessment and patching.
Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2021-02-12T18:15:12.610
2024-11-21T05:51:03.173
Modified
CVSSv3.1: 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_advanced_web_application_firewall | ≤ 12.1.5 | Yes |
| Application | f5 | big-ip_advanced_web_application_firewall | < 13.1.3.6 | Yes |
| Application | f5 | big-ip_advanced_web_application_firewall | < 14.1.3.1 | Yes |
| Application | f5 | big-ip_advanced_web_application_firewall | < 15.1.2 | Yes |
| Application | f5 | big-ip_advanced_web_application_firewall | < 16.0.1.1 | Yes |
| Application | f5 | big-ip_application_security_manager | ≤ 12.1.5 | Yes |
| Application | f5 | big-ip_application_security_manager | < 13.1.3.6 | Yes |
| Application | f5 | big-ip_application_security_manager | < 14.1.3.1 | Yes |
| Application | f5 | big-ip_application_security_manager | < 15.1.2 | Yes |
| Application | f5 | big-ip_application_security_manager | < 16.0.1.1 | 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.