CVE-2025-20339
Published: Sep 24, 2025
Modified: Sep 24, 2025
CVSS v3.1
5.8
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.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco SD-WAN vEdge Cloud | affected 20.9.1affected 20.9.1.1affected 20.9.2affected 20.9.3affected 20.9.3.1+7 more versions |
Cisco | Cisco SD-WAN vEdge Router | affected 20.3.1affected 20.3.2affected 20.4.1affected 20.4.1.1affected 20.3.3+27 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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