CVE-2025-6443 — Mikrotik RouterOS VXLAN Source IP Improper Access Control Vulnerability

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Mikrotik / RouterOS	affected 7.15.3, 7.16.2

CWE

CWE-284

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.