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CISA alerta para RCE crítica no MikroTik RouterOS

Cybersecurity

A CISA alertou para uma nova vulnerabilidade crítica no MikroTik RouterOS que pode levar à execução remota de código ou causar uma condição de negação de serviço.

A CISA alertou para uma nova vulnerabilidade crítica no MikroTik RouterOS que pode levar à execução remota de código ou causar uma condição de negação de serviço.

Em contexto

  • Tema: Ciberseguridad — Riesgo, identidad, respuesta a incidentes y cumplimiento.
  • Fonte: CISO Advisor
  • Publicado: 30/09/2026

Continuar lendo na fonte original →

Trecho publicado automaticamente pelo radar do site. O texto completo pertence ao veículo e está vinculado acima.

Why it matters

Most incidents that end up being expensive did not start with a sophisticated technique. They started with an account that should have been closed when somebody resigned, a server nobody knew was still on, or a broad permission granted to unblock someone that then stayed forever.

I read it with the same short list as always: second factor on anything that grants access, tested backups kept off the network, and a real inventory of what is exposed to the internet. It is not glamorous, and it still prevents most disasters.

What usually goes wrong

The most expensive blind spot is usually the supplier. The organisation hardens its own perimeter and grants broad access to a third party that has half those controls. A good share of the incidents I have seen in this region came in that way, and the contract said nothing about it.

What to watch

  • Whether initial access came from a legitimate account handled badly, which is the most frequent pattern.
  • What could be restored and how fast — a backup that was never tested does not count.
  • How it was communicated to customers and regulators, which is where reputational cost is decided.

How I read this entry

If this happened near an organisation I advise, the conversation I would force is not about tools. It is about the rehearsal. How many times the incident was simulated, who calls whom, what gets said to customers and when. A plan never rehearsed is not a plan, it is a document.

The original story is published in another language; the excerpt is quoted as the publisher delivers it and the commentary is written in English.
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