All Wi-Fi enabled devices operating on Broadcom or Cypress Wi-Fi chipsets are impacted. ESET has pegged the number of vulnerable devices at over a billion as a "conservative" estimate.
Patches are being applied by vendors that use these chipsets and it is also possible to mitigate attacks by using the newer WPA3 protocol.
Cisco is currently examining how widespread Kr00k vulnerability is within its products, as a user of Broadcom chips.
The tech giant said on Thursday that "Cisco is investigating its product line to determine which products may be affected by this vulnerability," but preliminary investigations have shown that "multiple" devices are impacted.
On Wednesday, Cisco announced a slew of new software and hardware solutions for 5G infrastructure. The Cloud Services stacks for mobility, residential and content delivery offerings are designed to boost 4G and 5G networking services, content streaming, and networking at the edge.
10 worst hacks and data breaches of 2019 (in pictures)