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5 September 2026

Vulnerabilities first published on this day (UTC), newest first.

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  • Medium 6.9
    CVE-2026-67279 Exploited Public exploit

    SSH Pre-Authentication Rekey State Bypass in MikroTik RouterOS

    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…

    MikroTik RouterOS Network devices
    KEV Sep 25, 2026