🚨 CVE-2026-67279
RouterOS SSH enters the connection protocol after a client-requested rekey even though user authentication was never attempted, allowing an unauthenticated client to open a session channel and send an exec request. On affected builds the server dispatches the command, enabling unauthenticated creation, overwrite, and reconstruction of files in the RouterOS managed file namespace, including support files containing configuration and diagnostic data.This issue was fixed in versions: 6.49.21 (Lont-term), 7.23.4 (Lont-term) and 7.24.2 (Stable)
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Vulnerabilities in Mikrotik RouterOS software
CERT Polska has found 6 vulnerabilities (from CVE-2026-67276 to CVE-2026-67279, CVE-2026-67281 and CVE-2026-86060) in Mikrotik RouterOS software.
September 5, 2026 31
