How can an attacker exploit CVE-2021-34979?

Authentication is not required to exploit this vulnerability, and an attacker can execute arbitrary code by sending malicious SOAP requests.

What is the severity of CVE-2021-34979?

CVE-2021-34979 has a severity rating of 8.8 (high).

Which software versions are affected by CVE-2021-34979?

The affected software version is NETGEAR R6260 firmware 1.1.0.78_1.0.1.

How can I fix CVE-2021-34979?

To fix CVE-2021-34979, it is recommended to update the firmware of the affected NETGEAR R6260 routers to the latest version provided by the vendor.

Vulnerability/
CVE-2021-34979

high

8.8

CWE

120

13/1/2022

4/8/2024

CVE-2021-34979: NETGEAR R6260 mini_httpd Buffer Overflow Remote Code Execution Vulnerability

First published: Thu Jan 13 2022(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13512.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Netgear R6260 Firmware	=1.1.0.78_1.0.1
NETGEAR R6260

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Frequently Asked Questions

What is CVE-2021-34979?
CVE-2021-34979 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers.
How can an attacker exploit CVE-2021-34979?
Authentication is not required to exploit this vulnerability, and an attacker can execute arbitrary code by sending malicious SOAP requests.
What is the severity of CVE-2021-34979?
CVE-2021-34979 has a severity rating of 8.8 (high).
Which software versions are affected by CVE-2021-34979?
The affected software version is NETGEAR R6260 firmware 1.1.0.78_1.0.1.
How can I fix CVE-2021-34979?
To fix CVE-2021-34979, it is recommended to update the firmware of the affected NETGEAR R6260 routers to the latest version provided by the vendor.

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