A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) IPv4 access control list (ACL) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to perform SNMP polling of an affected device, even if it is configured to deny SNMP traffic. This vulnerability exists because Cisco IOS Software and Cisco IOS XE Software do not support extended IPv4 ACLs for SNMP, but they do allow administrators to configure extended named IPv4 ACLs that are attached to the SNMP server configuration without a warning message. This can result in no ACL being applied to the SNMP listening process. An attacker could exploit this vulnerability by performing SNMP polling of an affected device. A successful exploit could allow the attacker to perform SNMP operations that should be denied. The attacker has no control of the SNMP ACL configuration and would still need a valid SNMP version 2c (SNMPv2c) community string or SNMP version 3 (SNMPv3) user credentials. SNMP with IPv6 ACL configurations is not affected. For more information, see the section of this advisory.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, 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 limited integrity, for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.
Reported in 2024, 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.
2024-11-15T15:15:06.823
2025-08-01T18:22:14.640
Analyzed
CVSSv3.1: 5.3 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xe_sd-wan | 16.9.3 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.9.4 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.1 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.2 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.3 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.3a | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.3b | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.4 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.5 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.10.6 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.11.1 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.11.1a | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.11.1b | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.11.1d | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.11.1f | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.11.1s | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.12.1 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.12.3 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.12.4 | Yes |
| Operating System | cisco | ios_xe_sd-wan | 16.12.5 | 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.