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CVE-2025-6443: routeros vulnerability
CVE-2025-6443: high vulnerability affecting routeros. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 7.2 HIGH
- EPSS
- 37.89%
- Known exploited
- not in KEV
- Product
- routeros
What is known
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.
Business impact
Successful exploitation of CVE-2025-6443, a high vulnerability (CVSS 7.2) affecting routeros, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether routeros is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.