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High · 8.8 CVE-2021-27252 EUVD-2021-14017GHSA-gqcm-w2xr-9g8j

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version …

Published Apr 14, 2021 · Updated Aug 3, 2024 · Assigned by zdi

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the vendor_specific DHCP opcode. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12216.

Affected products

VendorProductAffectedFixed
NETGEAR R7800 firmware version 1.0.2.76 —

References