Security Advisory

CVE-2025-20339

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-09-24 16:40:27

Last updated 2025-09-24 17:04:25

Assigner cisco

State PUBLISHED

Description

A vulnerability in the access control list (ACL) processing of IPv4 packets of Cisco SD-WAN vEdge Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to the improper enforcement of the implicit deny all at the end of a configured ACL. An attacker could exploit this vulnerability by attempting to send unauthorized traffic to an interface on an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device.

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