CVE-2021-34983: NETGEAR d6220 Firmware

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

NETGEAR Multiple Routers httpd Missing Authentication for Critical Function Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of authentication prior to allowing access to system configuration information. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-13708.

Affected products

NETGEAR d6220 Firmware: before 1.0.0.76 (fixed in 1.0.0.76)
NETGEAR d6400 Firmware: before 1.0.0.108 (fixed in 1.0.0.108)
NETGEAR d7000v2 Firmware: before 1.0.0.76 (fixed in 1.0.0.76)
NETGEAR DC112A Firmware: before 1.0.0.62 (fixed in 1.0.0.62)
NETGEAR DGN2200V4 Firmware: before 1.0.0.126 (fixed in 1.0.0.126)
NETGEAR EX3700 Firmware: before 1.0.0.94 (fixed in 1.0.0.94)
NETGEAR EX3800 Firmware: before 1.0.0.94 (fixed in 1.0.0.94)
NETGEAR EX6120 Firmware: before 1.0.0.66 (fixed in 1.0.0.66)
NETGEAR EX6130 Firmware: before 1.0.0.46 (fixed in 1.0.0.46)
NETGEAR EX7000 Firmware: before 1.0.1.106 (fixed in 1.0.1.106)
NETGEAR EX7500 Firmware: before 1.0.1.76 (fixed in 1.0.1.76)
NETGEAR LAX20 Firmware: before 1.1.6.30 (fixed in 1.1.6.30)
NETGEAR MR60 Firmware: before 1.1.6.122 (fixed in 1.1.6.122)
NETGEAR MR80 Firmware: before 1.1.6.10 (fixed in 1.1.6.10)
NETGEAR MS60 Firmware: before 1.1.6.122 (fixed in 1.1.6.122)
NETGEAR MS80 Firmware: before 1.1.6.10 (fixed in 1.1.6.10)
NETGEAR r6400 Firmware: before 1.0.1.76 (fixed in 1.0.1.76)
NETGEAR r6400v2 Firmware: before 1.0.4.120 (fixed in 1.0.4.120)
NETGEAR r6700v3 Firmware: before 1.0.4.120 (fixed in 1.0.4.120)
NETGEAR r6900p Firmware: before 1.3.3.148 (fixed in 1.3.3.148)
NETGEAR r7000 Firmware: before 1.0.11.128 (fixed in 1.0.11.128)
NETGEAR r7000p Firmware: before 1.3.3.148 (fixed in 1.3.3.148)
NETGEAR r7100lg Firmware: before 1.0.0.72 (fixed in 1.0.0.72)
NETGEAR r7850 Firmware: before 1.0.5.76 (fixed in 1.0.5.76)
NETGEAR r7900p Firmware: before 1.4.2.84 (fixed in 1.4.2.84)
and 27 more

Published 2024-05-07. Last modified 2026-06-17.