high
8.8
CWE
120
Advisory Published
Updated
Advisory Published

CVE-2022-27643: (Pwn2Own) NETGEAR R6700v3 upnpd Buffer Overflow Remote Code Execution Vulnerability

First published: Wed Mar 29 2023(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 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 buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15692.

Credit: zdi-disclosures@trendmicro.com

Affected SoftwareAffected VersionHow to fix
Netgear R6400 Firmware<1.0.1.78
NETGEAR R6400
Netgear R6400 Firmware<1.0.4.126
NETGEAR R6400=v2
Netgear R6700 Firmware<1.0.4.126
NETGEAR R6700=v3
Netgear R6900p Firmware<1.3.3.148
Netgear R6900P
Netgear R7000 Firmware<1.0.11.134
NETGEAR R7000
Netgear R7000p Firmware<1.3.3.148
Netgear R7000P
Netgear R7850 Firmware<1.0.5.84
NETGEAR R6400v2
Netgear R7900p Firmware<1.4.3.88
Netgear R7900p
Netgear R7960p Firmware<1.4.3.88
Netgear R7960p
Netgear R8000 Firmware<1.0.4.84
NETGEAR R8000
Netgear R8000p Firmware<1.4.3.88
Netgear R8000p
Netgear R8500 Firmware<1.0.2.158
NETGEAR R8500
Netgear Rax200 Firmware<1.0.6.138
NETGEAR RAX200
Netgear Rax75 Firmware<1.0.6.138
Netgear Rax75
Netgear Rax80 Firmware<1.0.6.138
Netgear Rax80
Netgear Rs400 Firmware<1.5.1.86
Netgear Rs400
Netgear R7100lg Firmware<1.0.0.76
Netgear R7100LG
Netgear Wndr3400 Firmware<1.0.1.44
NETGEAR Multiple Routers=v3
Netgear Wnr3500l Firmware<1.2.0.72
Netgear Wnr3500l=v2
Netgear Xr300 Firmware<1.0.3.72
Netgear XR300
Netgear Dc112a Firmware<1.0.0.64
Netgear DC112A
Netgear D6220 Firmware<1.0.0.80
NETGEAR D6220
NETGEAR R6400v2<1.0.0.114
Netgear D6400
Netgear Ex3700 Firmware<1.0.0.96
Netgear Ex3700
Netgear Ex3800 Firmware<1.0.0.96
Netgear Ex3800
Netgear Ex6120 Firmware<1.0.0.68
Netgear Ex6120
Netgear Ex6130 Firmware<1.0.0.48
Netgear Ex6130
NETGEAR R6400v2<1.0.0.80
NETGEAR R6400v2
NETGEAR R6700v3

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Reference Links

Frequently Asked Questions

  • What is CVE-2022-27643?

    CVE-2022-27643 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 routers.

  • What is the severity of CVE-2022-27643?

    The severity of CVE-2022-27643 is high with a CVSS score of 8.8.

  • Is authentication required to exploit CVE-2022-27643?

    No, authentication is not required to exploit CVE-2022-27643.

  • How can I fix CVE-2022-27643?

    To fix CVE-2022-27643, it is recommended to apply the necessary security updates provided by NETGEAR.

  • Where can I find more information about CVE-2022-27643?

    You can find more information about CVE-2022-27643 in the security advisory by NETGEAR and the advisory by Zero Day Initiative.

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