A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a DoS condition in the AnyConnect service on an affected device. This vulnerability is due to insufficient resource management when establishing TLS/SSL sessions. An attacker could exploit this vulnerability by sending a series of crafted TLS/SSL messages to the VPN server of an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to stop accepting new connections, preventing new SSL VPN connections from being established. Existing SSL VPN sessions are not impacted. Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention.
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 50 products from cisco, from cisco, from cisco and 47 others, 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.
2024-10-02T19:15:14.350
2025-06-04T21:15:36.527
Modified
CVSSv3.1: 5.8 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | meraki_z4c_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_z4c | - | No |
| Operating System | cisco | meraki_z4_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_z4 | - | No |
| Operating System | cisco | meraki_z3c_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_z3c | - | No |
| Operating System | cisco | meraki_z3_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_z3 | - | No |
| Operating System | cisco | meraki_vmx_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_vmx | - | No |
| Operating System | cisco | meraki_mx600_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx600 | - | No |
| Operating System | cisco | meraki_mx450_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx450 | - | No |
| Operating System | cisco | meraki_mx400_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx400 | - | No |
| Operating System | cisco | meraki_mx250_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx250 | - | No |
| Operating System | cisco | meraki_mx105_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx105 | - | No |
| Operating System | cisco | meraki_mx100_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx100 | - | No |
| Operating System | cisco | meraki_mx95_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx95 | - | No |
| Operating System | cisco | meraki_mx85_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx85 | - | No |
| Operating System | cisco | meraki_mx84_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx84 | - | No |
| Operating System | cisco | meraki_mx75_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx75 | - | No |
| Operating System | cisco | meraki_mx68w_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx68w | - | No |
| Operating System | cisco | meraki_mx68cw_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx68cw | - | No |
| Operating System | cisco | meraki_mx68_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx68 | - | No |
| Operating System | cisco | meraki_mx67w_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx67w | - | No |
| Operating System | cisco | meraki_mx67c_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx67c | - | No |
| Operating System | cisco | meraki_mx67_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx67 | - | No |
| Operating System | cisco | meraki_mx65w_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx65w | - | No |
| Operating System | cisco | meraki_mx65_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx65 | - | No |
| Operating System | cisco | meraki_mx64w_firmware | < 18.211.2 | Yes |
| Hardware | cisco | meraki_mx64w | - | No |
| Operating System | cisco | meraki_mx64_firmware | ≤ 18.211.2 | Yes |
| Hardware | cisco | meraki_mx64 | - | 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.