CVE-2022-20933
8.6 · HIGHOverview
CVE-2022-20933 is a high-severity vulnerability affecting cisco meraki_mx64_firmware. It was published on October 26, 2022 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z3 Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. An attacker could exploit this vulnerability by crafting a malicious request and sending it to the affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to crash and restart, resulting in the failure of the established SSL VPN connections and forcing remote users to initiate a new VPN connection and re-authenticate. A sustained attack could prevent new SSL VPN connections from being established. Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention. Cisco Meraki has released software updates that address this vulnera
Remediation
Check the references section for vendor advisories and patches from cisco. Update meraki_mx64_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | meraki_mx64_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx64w_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx65_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx65w_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx67_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx67cw_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx67w_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx68_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx68cw_firmware | >= 16.2.0, < 16.16.6 | Affected |
| cisco | meraki_mx68w_firmware | >= 16.2.0, < 16.16.6 | Affected |
Frequently Asked Questions
What is CVE-2022-20933?
CVE-2022-20933 is a high-severity vulnerability affecting cisco meraki_mx64_firmware. It was published on October 26, 2022 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2022-20933?
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2022-20933?
Check the references section for vendor advisories and patches from cisco. Update meraki_mx64_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-20933?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-20933 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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