CVE-2025-20339 — Cisco SD-WAN vEdge Software Access Control List Bypass Vulnerability
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…
Published: 2025-09-24 · CVSS: 5.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7