CVE-2021-34947CWE-787

NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability

High · published May 7, 2024

CVSS v3.0
8.8
EPSS
1%
Percentile
45.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
8.8 · HIGH
Vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00549 · 45.2th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2024-05-07T22:54Z
EPSS history
Timeline
  • 07 MAY 22:54Z
    NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability
    cvelistv5