A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.
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 12 products from cisco, from cisco, from cisco and 9 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2018-03-28T22:29:00.547
2026-01-14T18:44:00.517
Analyzed
CVSSv3.1: 8.6 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios | 15.5\(3\)s1.1 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.2 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.4 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.5 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.7 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.8 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.9 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.10 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.11 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.12 | Yes |
| Hardware | cisco | asr_1001-hx | - | No |
| Hardware | cisco | asr_1001-x | - | No |
| Hardware | cisco | asr_1002-hx | - | No |
| Hardware | cisco | asr_1002-x | - | No |
| Hardware | cisco | asr_1004 | - | No |
| Hardware | cisco | asr_1006 | - | No |
| Hardware | cisco | asr_1006-x | - | No |
| Hardware | cisco | asr_1009-x | - | No |
| Hardware | cisco | asr_1013 | - | No |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.1 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.2 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.4 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.5 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.7 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.8 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.9 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.10 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.11 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.12 | Yes |
| Hardware | cisco | asr_1001-hx | - | No |
| Hardware | cisco | asr_1001-x | - | No |
| Hardware | cisco | asr_1002-hx | - | No |
| Hardware | cisco | asr_1002-x | - | No |
| Hardware | cisco | asr_1004 | - | No |
| Hardware | cisco | asr_1006 | - | No |
| Hardware | cisco | asr_1006-x | - | No |
| Hardware | cisco | asr_1009-x | - | No |
| Hardware | cisco | asr_1013 | - | No |
| Operating System | cisco | ios | 15.5\(3\)s1.1 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.2 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.4 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.5 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.7 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.8 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.9 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.10 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.11 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s1.12 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.1 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.2 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.4 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.5 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.7 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.8 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.9 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.10 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.11 | Yes |
| Operating System | cisco | ios_xe | 15.5\(3\)s1.12 | Yes |
| Hardware | rockwellautomation | allen-bradley_stratix_5900 | - | 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.