CVE-2021-34947 HIGH

CVE-2021-34947: NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability

Vendor Netgear
Product R7800
Weakness CWE-787
Published May 7, 2024
Last update August 4, 2024

CVSS base score

8.8/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 7, 2024 CVE published
August 4, 2024 Record updated