CVE-2020-15634

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 routers with firmware 1.0.4.84_10.0.58. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of string table file uploads. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-9755.

• CWE-134

• https://kb.netgear.com/000062126/Security-Advisory-for-Pre-Authentication-Command-Injection-on-R6700v3-PSV-2020-0189Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-20-935/Third Party Advisory, VDB Entry
• https://kb.netgear.com/000062126/Security-Advisory-for-Pre-Authentication-Command-Injection-on-R6700v3-PSV-2020-0189Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-20-935/Third Party Advisory, VDB Entry

Published

Aug 20, 2020

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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-15629This vulnerability allows remote attackers to execute arbitr…7.8
• CVE-2020-1563A remote code execution vulnerability exists in Microsoft Of…7.8
• CVE-2020-15630This vulnerability allows remote attackers to disclose sensi…7.8
• CVE-2020-15631This vulnerability allows network-adjacent attackers to exec…8
• CVE-2020-15632This vulnerability allows network-adjacent attackers to bypa…8.8
• CVE-2020-15633This vulnerability allows network-adjacent attackers to bypa…8.8
• CVE-2020-15635This vulnerability allows network-adjacent attackers to exec…8.8
• CVE-2020-15636This vulnerability allows remote attackers to execute arbitr…9.8
• CVE-2020-15637This vulnerability allows remote attackers to disclose sensi…3.3
• CVE-2020-15638This vulnerability allows remote attackers to execute arbitr…7.8
• CVE-2020-15639This vulnerability allows remote attackers to execute arbitr…9.8
• CVE-2020-1564A remote code execution vulnerability exists when the Window…7.8