cvedb.io
CVE-2025-20219
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2025-08-14T17:15:35.920 · Last modified 2026-06-17T08:41:06.577

Summary

A vulnerability in the implementation of access control rules for loopback interfaces in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to send traffic that should have been blocked to a loopback interface. This vulnerability is due to improper enforcement of access control rules for loopback interfaces. An attacker could exploit this vulnerability by sending traffic to a loopback interface on an affected device. A successful exploit could allow the attacker to bypass configured access control rules and send traffic that should have been blocked to a loopback interface on the device.

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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.