CVE-2025-6443CWE-284

Mikrotik RouterOS VXLAN Source IP Improper Access Control Vulnerability

High · published June 25, 2025

CVSS v3.0
7.2
EPSS
1%
Percentile
46.3
In the wild
Unconfirmed
What it is

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 record
Technical detail
CVSS v3.0
7.2 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00567 · 46.3th percentile
Weakness
CWE-284 · Improper Access Control
Published
2025-06-25T21:29Z
EPSS history
Timeline
  • 25 JUN 21:29Z
    Mikrotik RouterOS VXLAN Source IP Improper Access Control Vulnerability
    cvelistv5