CVE-2025-6443

Mikrotik RouterOS VXLAN Source IP Improper Access Control Vulnerability. This vulnerability allows remote attackers to bypass access restrictions on affected installations of Mikrotik RouterOS. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of remote IP addresses when processing VXLAN traffic. The issue results from the lack of validation of the remote IP address against configured values prior to allowing ingress traffic into the internal network. An attacker can leverage this vulnerability to gain access to internal network resources. Was ZDI-CAN-26415.

The following products are affected by CVE-2025-6443 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-6443.

URL	Resource
https://www.zerodayinitiative.com/advisories/ZDI-25-424/