Big news in WiFi – a significant set of vulnerabilities known as FragAttacks, for fragmentation and aggregation attacks. This impacts all WiFi devices going as far back as 1997. The bugs are design flaws that impact most devices, and impact all modern security protocols, including WPA3, all the way back to WEP.
Vendors coordinated the release of updates, and many have published updates already. Full information at fragattacks.com
Why do we care?
Patch those systems, and keep an eye out for updates.