A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. This vulnerability exists because ARP entries are mismanaged. An attacker could exploit this vulnerability by continuously sending traffic that results in incomplete ARP entries. A successful exploit could allow the attacker to cause ARP requests on the device to be unsuccessful for legitimate hosts, resulting in a denial of service (DoS) condition.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.8, 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 limited availability for affected systems. Impacting 2 products from cisco, from cisco 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.
2021-03-24T20:15:13.150
2024-11-21T05:44:12.877
Modified
CVSSv3.1: 5.8 (MEDIUM)
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 | 12.2\(6\)i1 | Yes |
| Operating System | cisco | ios | 15.1\(3\)svr1 | Yes |
| Operating System | cisco | ios | 15.1\(3\)svr2 | Yes |
| Operating System | cisco | ios | 15.1\(3\)svr3 | Yes |
| Operating System | cisco | ios | 15.1\(3\)svs | Yes |
| Operating System | cisco | ios | 15.1\(3\)svs1 | Yes |
| Operating System | cisco | ios | 15.2\(2\)e6 | Yes |
| Operating System | cisco | ios | 15.2\(2\)e7 | Yes |
| Operating System | cisco | ios | 15.2\(2\)e7b | Yes |
| Operating System | cisco | ios | 15.2\(2\)e8 | Yes |
| Operating System | cisco | ios | 15.2\(2\)e9 | Yes |
| Operating System | cisco | ios | 15.2\(2\)e9a | Yes |
| Operating System | cisco | ios | 15.2\(2\)e10 | Yes |
| Operating System | cisco | ios | 15.2\(3\)e5 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e4 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e5 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e5a | Yes |
| Operating System | cisco | ios | 15.2\(4\)e6 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e7 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e8 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e9 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e10 | Yes |
| Operating System | cisco | ios | 15.2\(4\)e10a | Yes |
| Operating System | cisco | ios | 15.2\(4\)ea6 | Yes |
| Operating System | cisco | ios | 15.2\(4\)ea7 | Yes |
| Operating System | cisco | ios | 15.2\(4\)ea8 | Yes |
| Operating System | cisco | ios | 15.2\(4\)ea9 | Yes |
| Operating System | cisco | ios | 15.2\(4\)ea9a | Yes |
| Operating System | cisco | ios | 15.2\(4\)ea10 | Yes |
| Operating System | cisco | ios | 15.2\(5\)e1 | Yes |
| Operating System | cisco | ios | 15.2\(5\)e2 | Yes |
| Operating System | cisco | ios | 15.2\(5\)e2b | Yes |
| Operating System | cisco | ios | 15.2\(5\)e2c | Yes |
| Operating System | cisco | ios | 15.2\(5\)ex | Yes |
| Operating System | cisco | ios | 15.2\(5a\)e1 | Yes |
| Operating System | cisco | ios | 15.2\(6\)e | Yes |
| Operating System | cisco | ios | 15.2\(6\)e0a | Yes |
| Operating System | cisco | ios | 15.2\(6\)e0c | Yes |
| Operating System | cisco | ios | 15.2\(6\)e1 | Yes |
| Operating System | cisco | ios | 15.2\(6\)e1a | Yes |
| Operating System | cisco | ios | 15.2\(6\)e1s | Yes |
| Operating System | cisco | ios | 15.2\(6\)e2 | Yes |
| Operating System | cisco | ios | 15.2\(6\)e2a | Yes |
| Operating System | cisco | ios | 15.2\(6\)e2b | Yes |
| Operating System | cisco | ios | 15.2\(6\)e3 | Yes |
| Operating System | cisco | ios | 15.2\(6\)eb | Yes |
| Operating System | cisco | ios | 15.2\(7\)e | Yes |
| Operating System | cisco | ios | 15.2\(7\)e0a | Yes |
| Operating System | cisco | ios | 15.2\(7\)e0b | Yes |
| Operating System | cisco | ios | 15.2\(7\)e0s | Yes |
| Operating System | cisco | ios | 15.2\(7\)e1 | Yes |
| Operating System | cisco | ios | 15.2\(7\)e1a | Yes |
| Operating System | cisco | ios | 15.2\(7\)e2 | Yes |
| Operating System | cisco | ios | 15.2\(7\)e2a | Yes |
| Operating System | cisco | ios | 15.2\(7\)e2b | Yes |
| Operating System | cisco | ios | 15.2\(7\)e3 | Yes |
| Operating System | cisco | ios | 15.2\(7a\)e0b | Yes |
| Operating System | cisco | ios | 15.2\(7b\)e0b | Yes |
| Operating System | cisco | ios | 15.3\(3\)jpc97 | Yes |
| Operating System | cisco | ios | 15.4\(1\)sy | Yes |
| Operating System | cisco | ios | 15.4\(1\)sy1 | Yes |
| Operating System | cisco | ios | 15.4\(1\)sy2 | Yes |
| Operating System | cisco | ios | 15.4\(1\)sy3 | Yes |
| Operating System | cisco | ios | 15.4\(1\)sy4 | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy1 | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy2 | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy3 | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy4 | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy5 | Yes |
| Operating System | cisco | ios | 15.5\(1\)sy6 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m4 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m4a | Yes |
| Operating System | cisco | ios | 15.5\(3\)m4b | Yes |
| Operating System | cisco | ios | 15.5\(3\)m4c | Yes |
| Operating System | cisco | ios | 15.5\(3\)m5 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m6 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m6a | Yes |
| Operating System | cisco | ios | 15.5\(3\)m7 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m8 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m9 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m10 | Yes |
| Operating System | cisco | ios | 15.5\(3\)m11 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s4 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s5 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s6 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s6a | Yes |
| Operating System | cisco | ios | 15.5\(3\)s6b | Yes |
| Operating System | cisco | ios | 15.5\(3\)s7 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s8 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s9 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s9a | Yes |
| Operating System | cisco | ios | 15.5\(3\)s10 | Yes |
| Operating System | cisco | ios | 15.5\(3\)s10a | Yes |
| Operating System | cisco | ios | 15.6\(3\)m2 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m2a | Yes |
| Operating System | cisco | ios | 15.6\(3\)m3 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m3a | Yes |
| Operating System | cisco | ios | 15.6\(3\)m4 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m5 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m6 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m6a | Yes |
| Operating System | cisco | ios | 15.6\(3\)m6b | Yes |
| Operating System | cisco | ios | 15.6\(3\)m7 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m8 | Yes |
| Operating System | cisco | ios | 15.6\(3\)m9 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m | Yes |
| Operating System | cisco | ios | 15.7\(3\)m0a | Yes |
| Operating System | cisco | ios | 15.7\(3\)m1 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m2 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m3 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m4 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m4a | Yes |
| Operating System | cisco | ios | 15.7\(3\)m4b | Yes |
| Operating System | cisco | ios | 15.7\(3\)m5 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m6 | Yes |
| Operating System | cisco | ios | 15.7\(3\)m7 | Yes |
| Operating System | cisco | ios | 15.8\(3\)m | Yes |
| Operating System | cisco | ios | 15.8\(3\)m0a | Yes |
| Operating System | cisco | ios | 15.8\(3\)m0b | Yes |
| Operating System | cisco | ios | 15.8\(3\)m1 | Yes |
| Operating System | cisco | ios | 15.8\(3\)m1a | Yes |
| Operating System | cisco | ios | 15.8\(3\)m2 | Yes |
| Operating System | cisco | ios | 15.8\(3\)m2a | Yes |
| Operating System | cisco | ios | 15.8\(3\)m3 | Yes |
| Operating System | cisco | ios | 15.8\(3\)m3a | Yes |
| Operating System | cisco | ios | 15.8\(3\)m3b | Yes |
| Operating System | cisco | ios | 15.8\(3\)m4 | Yes |
| Operating System | cisco | ios | 15.8\(3\)m5 | Yes |
| Operating System | cisco | ios | 15.9\(3\)m | Yes |
| Operating System | cisco | ios | 15.9\(3\)m0a | Yes |
| Operating System | cisco | ios | 15.9\(3\)m1 | Yes |
| Operating System | cisco | ios | 15.9\(3\)m2 | Yes |
| Operating System | cisco | ios | 15.9\(3\)m2a | Yes |
| Operating System | cisco | ios_xe | 3.6.6e | Yes |
| Operating System | cisco | ios_xe | 3.6.7ae | Yes |
| Operating System | cisco | ios_xe | 3.6.7be | Yes |
| Operating System | cisco | ios_xe | 3.6.7e | Yes |
| Operating System | cisco | ios_xe | 3.6.8e | Yes |
| Operating System | cisco | ios_xe | 3.6.9ae | Yes |
| Operating System | cisco | ios_xe | 3.6.9e | Yes |
| Operating System | cisco | ios_xe | 3.6.10e | Yes |
| Operating System | cisco | ios_xe | 3.7.5e | Yes |
| Operating System | cisco | ios_xe | 3.8.4e | Yes |
| Operating System | cisco | ios_xe | 3.8.5ae | Yes |
| Operating System | cisco | ios_xe | 3.8.5e | Yes |
| Operating System | cisco | ios_xe | 3.8.6e | Yes |
| Operating System | cisco | ios_xe | 3.8.7e | Yes |
| Operating System | cisco | ios_xe | 3.8.8e | Yes |
| Operating System | cisco | ios_xe | 3.8.9e | Yes |
| Operating System | cisco | ios_xe | 3.8.10e | Yes |
| Operating System | cisco | ios_xe | 3.9.1e | Yes |
| Operating System | cisco | ios_xe | 3.9.2be | Yes |
| Operating System | cisco | ios_xe | 3.9.2e | Yes |
| Operating System | cisco | ios_xe | 3.10.0ce | Yes |
| Operating System | cisco | ios_xe | 3.10.0e | Yes |
| Operating System | cisco | ios_xe | 3.10.1ae | Yes |
| Operating System | cisco | ios_xe | 3.10.1e | Yes |
| Operating System | cisco | ios_xe | 3.10.1se | Yes |
| Operating System | cisco | ios_xe | 3.10.2e | Yes |
| Operating System | cisco | ios_xe | 3.10.3e | Yes |
| Operating System | cisco | ios_xe | 3.11.0e | Yes |
| Operating System | cisco | ios_xe | 3.11.1ae | Yes |
| Operating System | cisco | ios_xe | 3.11.1e | Yes |
| Operating System | cisco | ios_xe | 3.11.2ae | Yes |
| Operating System | cisco | ios_xe | 3.11.2e | Yes |
| Operating System | cisco | ios_xe | 3.11.3ae | Yes |
| Operating System | cisco | ios_xe | 3.11.3e | Yes |
| Operating System | cisco | ios_xe | 3.16.4as | Yes |
| Operating System | cisco | ios_xe | 3.16.4bs | Yes |
| Operating System | cisco | ios_xe | 3.16.4cs | Yes |
| Operating System | cisco | ios_xe | 3.16.4ds | Yes |
| Operating System | cisco | ios_xe | 3.16.4es | Yes |
| Operating System | cisco | ios_xe | 3.16.4gs | Yes |
| Operating System | cisco | ios_xe | 3.16.4s | Yes |
| Operating System | cisco | ios_xe | 3.16.5as | Yes |
| Operating System | cisco | ios_xe | 3.16.5bs | Yes |
| Operating System | cisco | ios_xe | 3.16.5s | Yes |
| Operating System | cisco | ios_xe | 3.16.6bs | Yes |
| Operating System | cisco | ios_xe | 3.16.6s | Yes |
| Operating System | cisco | ios_xe | 3.16.7as | Yes |
| Operating System | cisco | ios_xe | 3.16.7bs | Yes |
| Operating System | cisco | ios_xe | 3.16.7s | Yes |
| Operating System | cisco | ios_xe | 3.16.8s | Yes |
| Operating System | cisco | ios_xe | 3.16.9s | Yes |
| Operating System | cisco | ios_xe | 3.16.10as | Yes |
| Operating System | cisco | ios_xe | 3.16.10s | Yes |
| Operating System | cisco | ios_xe | 16.3.2 | Yes |
| Operating System | cisco | ios_xe | 16.3.3 | Yes |
| Operating System | cisco | ios_xe | 16.3.4 | Yes |
| Operating System | cisco | ios_xe | 16.3.5 | Yes |
| Operating System | cisco | ios_xe | 16.3.5b | Yes |
| Operating System | cisco | ios_xe | 16.3.6 | Yes |
| Operating System | cisco | ios_xe | 16.3.7 | Yes |
| Operating System | cisco | ios_xe | 16.3.8 | Yes |
| Operating System | cisco | ios_xe | 16.3.9 | Yes |
| Operating System | cisco | ios_xe | 16.3.10 | Yes |
| Operating System | cisco | ios_xe | 16.3.11 | Yes |
| Operating System | cisco | ios_xe | 16.4.1 | Yes |
| Operating System | cisco | ios_xe | 16.4.2 | Yes |
| Operating System | cisco | ios_xe | 16.4.3 | Yes |
| Operating System | cisco | ios_xe | 16.5.1 | Yes |
| Operating System | cisco | ios_xe | 16.5.1a | Yes |
| Operating System | cisco | ios_xe | 16.5.1b | Yes |
| Operating System | cisco | ios_xe | 16.5.2 | Yes |
| Operating System | cisco | ios_xe | 16.5.3 | Yes |
| Operating System | cisco | ios_xe | 16.6.1 | Yes |
| Operating System | cisco | ios_xe | 16.6.2 | Yes |
| Operating System | cisco | ios_xe | 16.6.3 | Yes |
| Operating System | cisco | ios_xe | 16.6.4 | Yes |
| Operating System | cisco | ios_xe | 16.6.4a | Yes |
| Operating System | cisco | ios_xe | 16.6.4s | Yes |
| Operating System | cisco | ios_xe | 16.6.5 | Yes |
| Operating System | cisco | ios_xe | 16.6.5a | Yes |
| Operating System | cisco | ios_xe | 16.6.5b | Yes |
| Operating System | cisco | ios_xe | 16.6.6 | Yes |
| Operating System | cisco | ios_xe | 16.6.7 | Yes |
| Operating System | cisco | ios_xe | 16.6.7a | Yes |
| Operating System | cisco | ios_xe | 16.6.8 | Yes |
| Operating System | cisco | ios_xe | 16.7.1 | Yes |
| Operating System | cisco | ios_xe | 16.7.1a | Yes |
| Operating System | cisco | ios_xe | 16.7.1b | Yes |
| Operating System | cisco | ios_xe | 16.7.2 | Yes |
| Operating System | cisco | ios_xe | 16.7.3 | Yes |
| Operating System | cisco | ios_xe | 16.7.4 | Yes |
| Operating System | cisco | ios_xe | 16.8.1 | Yes |
| Operating System | cisco | ios_xe | 16.8.1a | Yes |
| Operating System | cisco | ios_xe | 16.8.1b | Yes |
| Operating System | cisco | ios_xe | 16.8.1c | Yes |
| Operating System | cisco | ios_xe | 16.8.1d | Yes |
| Operating System | cisco | ios_xe | 16.8.1e | Yes |
| Operating System | cisco | ios_xe | 16.8.1s | Yes |
| Operating System | cisco | ios_xe | 16.8.2 | Yes |
| Operating System | cisco | ios_xe | 16.8.3 | Yes |
| Operating System | cisco | ios_xe | 16.9.1 | Yes |
| Operating System | cisco | ios_xe | 16.9.1a | Yes |
| Operating System | cisco | ios_xe | 16.9.1b | Yes |
| Operating System | cisco | ios_xe | 16.9.1c | Yes |
| Operating System | cisco | ios_xe | 16.9.1d | Yes |
| Operating System | cisco | ios_xe | 16.9.1s | Yes |
| Operating System | cisco | ios_xe | 16.9.2 | Yes |
| Operating System | cisco | ios_xe | 16.9.2a | Yes |
| Operating System | cisco | ios_xe | 16.9.2s | Yes |
| Operating System | cisco | ios_xe | 16.9.3 | Yes |
| Operating System | cisco | ios_xe | 16.9.3a | Yes |
| Operating System | cisco | ios_xe | 16.9.3h | Yes |
| Operating System | cisco | ios_xe | 16.9.3s | Yes |
| Operating System | cisco | ios_xe | 16.9.4 | Yes |
| Operating System | cisco | ios_xe | 16.9.4c | Yes |
| Operating System | cisco | ios_xe | 16.9.5 | Yes |
| Operating System | cisco | ios_xe | 16.9.5f | Yes |
| Operating System | cisco | ios_xe | 16.9.6 | Yes |
| Operating System | cisco | ios_xe | 16.10.1 | Yes |
| Operating System | cisco | ios_xe | 16.10.1a | Yes |
| Operating System | cisco | ios_xe | 16.10.1b | Yes |
| Operating System | cisco | ios_xe | 16.10.1c | Yes |
| Operating System | cisco | ios_xe | 16.10.1d | Yes |
| Operating System | cisco | ios_xe | 16.10.1e | Yes |
| Operating System | cisco | ios_xe | 16.10.1f | Yes |
| Operating System | cisco | ios_xe | 16.10.1g | Yes |
| Operating System | cisco | ios_xe | 16.10.1s | Yes |
| Operating System | cisco | ios_xe | 16.10.2 | Yes |
| Operating System | cisco | ios_xe | 16.10.3 | Yes |
| Operating System | cisco | ios_xe | 16.11.1 | Yes |
| Operating System | cisco | ios_xe | 16.11.1a | Yes |
| Operating System | cisco | ios_xe | 16.11.1b | Yes |
| Operating System | cisco | ios_xe | 16.11.1c | Yes |
| Operating System | cisco | ios_xe | 16.11.1s | Yes |
| Operating System | cisco | ios_xe | 16.11.2 | Yes |
| Operating System | cisco | ios_xe | 16.12.1 | Yes |
| Operating System | cisco | ios_xe | 16.12.1a | Yes |
| Operating System | cisco | ios_xe | 16.12.1c | Yes |
| Operating System | cisco | ios_xe | 16.12.1s | Yes |
| Operating System | cisco | ios_xe | 16.12.1t | Yes |
| Operating System | cisco | ios_xe | 16.12.1w | Yes |
| Operating System | cisco | ios_xe | 16.12.1x | Yes |
| Operating System | cisco | ios_xe | 16.12.1y | Yes |
| Operating System | cisco | ios_xe | 16.12.1z | Yes |
| Operating System | cisco | ios_xe | 16.12.2 | Yes |
| Operating System | cisco | ios_xe | 16.12.2a | Yes |
| Operating System | cisco | ios_xe | 16.12.2s | Yes |
| Operating System | cisco | ios_xe | 16.12.2t | Yes |
| Operating System | cisco | ios_xe | 16.12.3 | Yes |
| Operating System | cisco | ios_xe | 16.12.3a | Yes |
| Operating System | cisco | ios_xe | 16.12.3s | Yes |
| Operating System | cisco | ios_xe | 16.12.4 | Yes |
| Operating System | cisco | ios_xe | 16.12.4a | Yes |
| Operating System | cisco | ios_xe | 17.1.1 | Yes |
| Operating System | cisco | ios_xe | 17.1.1a | Yes |
| Operating System | cisco | ios_xe | 17.1.1s | Yes |
| Operating System | cisco | ios_xe | 17.1.1t | Yes |
| Operating System | cisco | ios_xe | 17.1.2 | Yes |
| Operating System | cisco | ios_xe | 17.2.1 | Yes |
| Operating System | cisco | ios_xe | 17.2.1a | Yes |
| Operating System | cisco | ios_xe | 17.2.1r | Yes |
| Operating System | cisco | ios_xe | 17.2.1v | Yes |
| Operating System | cisco | ios_xe | 17.2.2 | Yes |
| Operating System | cisco | ios_xe | 17.3.1 | Yes |
| Operating System | cisco | ios_xe | 17.3.1a | Yes |
| Operating System | cisco | ios_xe | 17.3.1w | Yes |
| Operating System | cisco | ios_xe | 17.3.2 | Yes |
| Operating System | cisco | ios_xe | 17.3.2a | 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.