CVE-2025-56566: Mikrotik RouterOS vulnerability
Published Sep 16, 2026
·Updated
MikroTik firmware 7.19.4 stores sensitive authentication credentials and network state in cleartext within non-volatile storage. An attacker with physical access to the device can extract this material from an SPI flash dump, without authenticating to the device and without knowledge of the administrative password.
Affected Software
1 affected component
Mikrotik RouterOS=7.19.4
Event History
Sep 16, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Frequently Asked Questions
1
Who can exploit this issue?
An attacker needs physical access to the affected device and the ability to obtain an SPI flash dump. They do not need to authenticate to the device or know the administrative password.
2
What information could be exposed from the device?
The non-volatile storage contains sensitive authentication credentials and network state in cleartext, which can be extracted from an SPI flash dump.