CVE-2022-27643

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.

• CWE-120

• https://kb.netgear.com/000064720/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0323Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-22-519/Third Party Advisory, VDB Entry
• https://kb.netgear.com/000064720/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0323Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-22-519/Third Party Advisory, VDB Entry

Published

Mar 29, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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