On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart.
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 2020, 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.
2020-12-24T16:15:15.087
2024-11-21T05:21:41.590
Modified
CVSSv3.1: 7.5 (HIGH)
AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | f5 | big-ip_carrier-grade_nat | ≤ 13.1.3 | Yes |
| Application | f5 | big-ip_carrier-grade_nat | < 14.1.3.1 | Yes |
| Application | f5 | big-ip_carrier-grade_nat | < 15.1.1 | Yes |
| Application | f5 | big-ip_carrier-grade_nat | < 16.0.1 | Yes |
| Application | f5 | big-ip_local_traffic_manager | ≤ 13.1.3 | Yes |
| Application | f5 | big-ip_local_traffic_manager | < 14.1.3.1 | Yes |
| Application | f5 | big-ip_local_traffic_manager | < 15.1.1 | Yes |
| Application | f5 | big-ip_local_traffic_manager | < 16.0.1 | 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.