A vulnerability in the RADIUS feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause the affected system to stop processing RADIUS packets. This vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by attempting to authenticate to a network or a service where the access server is using Cisco ISE as the RADIUS server. A successful exploit could allow the attacker to cause Cisco ISE to stop processing RADIUS requests, causing authentication/authorization timeouts, which would then result in legitimate requests being denied access. Note: To recover the ability to process RADIUS packets, a manual restart of the affected Policy Service Node (PSN) is required. See the Details section for more information.
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 1 product from cisco organizations running these solutions should prioritize assessment and patching.
Reported in 2022, 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.
2022-04-06T19:15:08.220
2024-11-21T06:43:29.350
Modified
CVSSv3.1: 8.6 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | identity_services_engine | 2.2.0 | Yes |
| Application | cisco | identity_services_engine | 2.4.0 | Yes |
| Application | cisco | identity_services_engine | 2.4.0 | Yes |
| Application | cisco | identity_services_engine | 2.4.0 | Yes |
| Application | cisco | identity_services_engine | 2.6.0 | Yes |
| Application | cisco | identity_services_engine | 2.6.0 | Yes |
| Application | cisco | identity_services_engine | 2.6.0 | Yes |
| Application | cisco | identity_services_engine | 2.6.0 | Yes |
| Application | cisco | identity_services_engine | 2.6.0 | Yes |
| Application | cisco | identity_services_engine | 2.6.0 | Yes |
| Application | cisco | identity_services_engine | 2.7.0 | Yes |
| Application | cisco | identity_services_engine | 2.7.0 | Yes |
| Application | cisco | identity_services_engine | 2.7.0 | Yes |
| Application | cisco | identity_services_engine | 2.7.0.356 | Yes |
| Application | cisco | identity_services_engine | 3.0.0 | Yes |
| Application | cisco | identity_services_engine | 3.1 | 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 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.