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All Windows users should immediately update their computers. An exploit rated 9.8/10 (CVE-2024-38063) compromises all devices running Windows with an IPv6 address. (msrc.microsoft.com)

submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/technology

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If you have the August 13, 2024—KB5041580 update. You're good.

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[+] jordanlund -9 points 4 months ago (6 children)

Well, not ALL Windows machines...

"Systems are not affected if IPv6 is disabled on the target machine."

I can't remember the last time I saw an IPv6 machine...

[–] AProfessional 68 points 4 months ago (2 children)

It is on by default in Windows.. More likely people have routers with it disabled.

[–] [email protected] 11 points 4 months ago

Definitely on by default on my laptop

[–] [email protected] 0 points 4 months ago

And disabling it fucks with Windows AD.

[–] cbarrick 11 points 4 months ago (1 children)

Where I work, everything is on IPv6. Both the infrastructure for the software services that we run, and our own internal corporate network.

My ISP also provides publicly routable IPv6 prefixes over DHCP. Any layman in my city with this ISP will be on IPv6 by default.

I also use IPv6 for my LAN.

Like, it's just kind of the default in my neck of the woods...

[–] [email protected] 7 points 4 months ago (2 children)

I have two different ISPs offering gigabit fiber to the home, neither offers IPv6 at all. One of thes years I'll tunnel an IPv6 prefix or two onto my network to actually get some real world experience with...

[–] [email protected] 3 points 4 months ago

That’s strange. Mine dual routes. So we get both. I don’t know they generally tell you the ipv6 unless you ask though as most internal networks are still using primarily ipv4

[–] Archer 1 points 4 months ago

ISPs nowadays tend to be either having offered 6 for years or never offered it. Not much middle ground

[–] [email protected] 9 points 4 months ago

My entire network runs IPv6. I don't have any windows machines though.

[–] Brkdncr 6 points 4 months ago

IPv6 is enabled by default on windows. Additionally, MS does no testing against machines with ipv6 turned off. People that go through the effort of turning it off may run into problems.

[–] [email protected] 5 points 4 months ago (1 children)

It's on by default with Win10 at least.

I disable it on all machines I build. And use GP to ensure it stays disabled.

[–] cm0002 3 points 4 months ago (1 children)

Same, ain't nobody got time to memorize IPv6 addresses! Lmao

[–] [email protected] 2 points 4 months ago

There's just no need for it on small networks. Just another thing running that can go wrong (as it did here).

It also contributes to increased troubleshooting when networking is acting funny, because now you have 2 stacks to consider.

[–] HarriPotero 4 points 4 months ago

My ISP enabled native IPv6 for me a few months back. It's pretty great. I don't have any windows machines, but I doubt my wife has disabled it on hers.

Anyway, our router is set up to drop incoming IPv6 traffic by default, sanely enough.