CVE-2022-27641 (d7800_firmware, ex6200_firmware, ex8000_firmware, r6220_firmware, r6230_firmware, r6400_firmware, r6700_firmware, r7000_firmware, r7800_firmware)

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15806.

attackers authentication buffer code context cve data exploit flaw integer issue netgear netusb network overflow result results root routers validation vulnerability zdi