Chances are you're using a hardware router, and one where you're not going to get a firmware update, so you'll still be vulnerable even after MOS is patched.
No, it's mostly a WiFi client problem:https://www.krackattacks.com/#faq
Relevant question:"What if there are no security updates for my router?"
Our main attack is against the 4-way handshake, and does not exploit access points, but instead targets clients. So it might be that your router does not require security updates. We strongly advise you to contact your vendor for more details. In general though, you can try to mitigate attacks against routers and access points by disabling client functionality (which is for example used in repeater modes) and disabling 802.11r (fast roaming). For ordinary home users, your priority should be updating clients such as laptops and smartphones.
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