cvedb.io
CVE-2025-20133
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2025-08-14T17:15:34.130 · Last modified 2026-06-17T08:40:44.560

Summary

A vulnerability in the management and VPN web servers of the Remote Access SSL VPN feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to unexpectedly stop responding, resulting in a DoS condition. This vulnerability is due to ineffective validation of user-supplied input during the Remote Access SSL VPN authentication process. An attacker could exploit this vulnerability by sending a crafted request to the VPN service on an affected device. A successful exploit could allow the attacker to cause a DoS condition where the device stops responding to Remote Access SSL VPN authentication requests.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.