Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.8, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 4 products from cisco, from cisco, from cisco and 1 other, 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.
2021-10-27T19:15:08.667
2024-11-26T16:09:02.407
Modified
CVSSv3.1: 6.8 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | firepower_threat_defense | < 6.4.0.12 | Yes |
| Application | cisco | firepower_threat_defense | < 6.6.3 | Yes |
| Application | cisco | firepower_threat_defense | < 6.7.0.2 | Yes |
| Application | cisco | secure_firewall_management_center | 2.9.14.0 | Yes |
| Application | cisco | secure_firewall_management_center | 2.9.15 | Yes |
| Application | cisco | secure_firewall_management_center | 2.9.16 | Yes |
| Application | cisco | secure_firewall_management_center | 2.9.17 | Yes |
| Application | cisco | unified_threat_defense | < 16.12.6 | Yes |
| Application | cisco | unified_threat_defense | < 17.3.4a | Yes |
| Application | cisco | unified_threat_defense | < 17.4.2 | Yes |
| Application | snort | snort | < 2.9.18 | 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.