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CVE-2021-34947

HIGH CVSS: 8.8 Published: 2024-05-07 Modified: 2026-06-17

Description

NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of the soap_block_table file. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13055.

Affected Platforms

Netgear Xr500Netgear Xr500 FirmwareNetgear Rbr10Netgear Lbr1020Netgear Rbs40Netgear Rbs20Netgear Ex6420 FirmwareNetgear Ex8000Netgear Ex6250 FirmwareNetgear Ex6100 Firmware

Weakness Type

CWE-787

References