CVE-2021-34947

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.

CVSS 3.0

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

EPSS

0.55% probability · 44th percentile

CISA KEV

Not listed

Weakness

CWE-787

Affected

netgear/d7800 firmware · netgear/ex2700 firmware · netgear/ex6100 firmware · netgear/ex6150 firmware · netgear/ex6200 firmware · netgear/ex6250 firmware · netgear/ex6400 firmware · netgear/ex6400v2 firmware · netgear/ex6410 firmware · netgear/ex6420 firmware · netgear/ex6500v1 firmware · netgear/ex7300 firmware · netgear/ex7300v2 firmware · netgear/ex7320 firmware · netgear/ex7700 firmware · netgear/ex8000 firmware · netgear/lbr1020 firmware · netgear/lbr20 firmware · netgear/r6700ax firmware · netgear/r7800 firmware · +21 more

Source

zdi-disclosures@trendmicro.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.