Netgear R6700v3 1.0.4.120_10.0.91 SOAP Request buffer overflow

Summaryinfo

A vulnerability was found in Netgear R6700v3 1.0.4.120_10.0.91. It has been declared as critical. This affects an unknown function of the component SOAP Request Handler. The manipulation results in buffer overflow. This vulnerability is identified as CVE-2022-27643. The attack can only be performed from the local network. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Netgear R6700v3 1.0.4.120_10.0.91 (Wireless LAN Software). Affected is some unknown processing of the component SOAP Request Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released 03/30/2023 as ZDI-22-519. The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2022-27643 since 03/22/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 05/14/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-32144). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Wireless LAN Software

Vendor

• Netgear

Name

• R6700v3

Version

• 1.0.4.120_10.0.91

License

• commercial

Website

• Vendor: https://www.netgear.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion