Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-34983

Severity CVSS v4.0:
Pending analysis
Type:
CWE-306 Missing Authentication for Critical Function
Publication date:
07/05/2024
Last modified:
14/08/2025

Description

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.<br /> <br /> 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.

Impact

Vector 3.x
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
6.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:netgear:xr1000_firmware:*:*:*:*:*:*:*:* 1.0.0.64 (excluding)
cpe:2.3:h:netgear:xr1000:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:xr300_firmware:*:*:*:*:*:*:*:* 1.0.3.68 (excluding)
cpe:2.3:h:netgear:xr300:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:* 1.0.0.76 (excluding)
cpe:2.3:h:netgear:d6220:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:* 1.0.0.108 (excluding)
cpe:2.3:h:netgear:d6400:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d7000v2_firmware:*:*:*:*:*:*:*:* 1.0.0.76 (excluding)
cpe:2.3:h:netgear:d7000v2:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:dgn2200v4_firmware:*:*:*:*:*:*:*:* 1.0.0.126 (excluding)
cpe:2.3:h:netgear:dgn2200v4:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:v6510-1fxaus_firmware:*:*:*:*:*:*:*:* 1.0.0.80 (excluding)
cpe:2.3:h:netgear:v6510-1fxaus:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:dc112a_firmware:*:*:*:*:*:*:*:* 1.0.0.62 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools