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CVE-2025-20212

Cisco Meraki MX - Cisco AnyConnect VPN server

Cisco CVSS 7.7 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series devices could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid VPN user credentials on the affected device to exploit this vulnerability, which could lead to the failure of established SSL VPN sessions and force remote users to reauthenticate."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco AnyConnect VPN server
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Likely

High

Internal Work Notes

CVE-2025-20212: Cisco Meraki MX and Z Series devices are vulnerable to a DoS attack via the Cisco AnyConnect VPN server, requiring valid VPN user credentials to exploit. Apply the latest firmware patch to mitigate the risk of service disruption.

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.