CVE-2022-27643

HIGH

NETGEAR Multiple Router Models Firmware - Unauthenticated RCE via SOAPAction Buffer Overflow

Title source: llm

Description

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.

References (2)

Core 2

Core References

Vendor Advisory

https://kb.netgear.com/000064720/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0323

Third Party Advisory, VDB Entry

https://www.zerodayinitiative.com/advisories/ZDI-22-519/

Scores

CVSS v3 8.8

EPSS 0.2511

EPSS Percentile 97.7%

Attack Vector ADJACENT_NETWORK

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-120

Status published

Products (27)

netgear/d6220_firmware < 1.0.0.80

netgear/d6400_firmware < 1.0.0.114

netgear/d7000v2_firmware < 1.0.0.80

netgear/dc112a_firmware < 1.0.0.64

netgear/ex3700_firmware < 1.0.0.96

netgear/ex3800_firmware < 1.0.0.96

netgear/ex6120_firmware < 1.0.0.68

netgear/ex6130_firmware < 1.0.0.48

netgear/r6400_firmware < 1.0.1.78

netgear/r6700_firmware < 1.0.4.126

... and 17 more

Published Mar 29, 2023

Tracked Since Feb 18, 2026