Vulnerability · Published Sep 24, 2025 · Assigned by cisco
CVE-2025-20339Cisco SD-WAN vEdge Software Access Control List Bypass Vulnerability
Medium 5.8
In plain English
A medium-severity improper access control in Cisco SD-WAN vEdge Cloud from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco SD-WAN vEdge Cloud | 20.9.120.9.1.120.9.220.9.320.9.3.120.9.2.220.9.2.320.9.4 |
| Cisco | Cisco SD-WAN vEdge Router | 20.3.120.3.220.4.120.4.1.120.3.320.4.1.220.4.220.3.4 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N