CVE-2020-27866 | BDVDB-2026-149031 Detail
NETGEARMultiple Routers
Description#
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11355.
Impact#
Per CVSS v3.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: adjacent.
Weaknesses#
- CWE-288 Authentication Bypass Using an Alternate Path or Channel
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.