Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.
This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.5, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required requiring only low-level privileges . The vulnerability impacts and limited availability for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.
Originally identified in 1998, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
1998-08-12T04:00:00.000
2026-04-16T00:27:16.627
Modified
CVSSv3.1: 3.5 (LOW)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios | 9.1 | Yes |
| Operating System | cisco | ios | 11.0\(20.3\) | Yes |
| Operating System | cisco | ios | 11.1\(15\)ca | Yes |
| Operating System | cisco | ios | 11.1\(16\) | Yes |
| Operating System | cisco | ios | 11.1\(16\)aa | Yes |
| Operating System | cisco | ios | 11.1\(16\)ia | Yes |
| Operating System | cisco | ios | 11.1\(17\)cc | Yes |
| Operating System | cisco | ios | 11.1\(17\)ct | Yes |
| Operating System | cisco | ios | 11.2\(8\)sa3 | Yes |
| Operating System | cisco | ios | 11.2\(9\)p | Yes |
| Operating System | cisco | ios | 11.2\(9\)xa | Yes |
| Operating System | cisco | ios | 11.2\(10\) | Yes |
| Operating System | cisco | ios | 11.2\(10\)bc | Yes |
| Operating System | cisco | ios | 11.3\(1\) | Yes |
| Operating System | cisco | ios | 11.3\(1\)ed | Yes |
| Operating System | cisco | ios | 11.3\(1\)t | 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.