A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition. This vulnerability is due to a deadlock condition in the code when processing COPS packets under certain conditions. An attacker could exploit this vulnerability by sending COPS packets with high burst rates to an affected device. A successful exploit could allow the attacker to cause the CPU to consume excessive resources, which prevents other control plane processes from obtaining resources and results in a DoS.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.6, 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 cisco, from cisco, from cisco and 10 others, 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.
2021-09-23T03:15:13.353
2024-11-21T05:44:45.800
Modified
CVSSv3.1: 8.6 (HIGH)
AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xe | < 16.12.1z1 | Yes |
| Operating System | cisco | ios_xe | 17.3.1x | Yes |
| Hardware | cisco | 7600_router | - | No |
| Hardware | cisco | asr_901-12c-f-d | - | No |
| Hardware | cisco | asr_901-12c-ft-d | - | No |
| Hardware | cisco | asr_901-4c-f-d | - | No |
| Hardware | cisco | asr_901-4c-ft-d | - | No |
| Hardware | cisco | asr_901-6cz-f-a | - | No |
| Hardware | cisco | asr_901-6cz-f-d | - | No |
| Hardware | cisco | asr_901-6cz-fs-a | - | No |
| Hardware | cisco | asr_901-6cz-fs-d | - | No |
| Hardware | cisco | asr_901-6cz-ft-a | - | No |
| Hardware | cisco | asr_901-6cz-ft-d | - | No |
| Hardware | cisco | cbr-8 | - | No |
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 cisco'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.