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CVE-2026-11736

Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk routers

A stack-based buffer overflow vulnerability affects certain NETGEAR models allowing an authenticated admin user to make unauthorized modification to router software and functionality.

CVSS 4.0 · 1.9 Low EPSS < 1% KEV · Not listed
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CVE-2026-11735

Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk models

A stack-based buffer overflow vulnerability affects the listed NETGEAR models allowing an authenticated admin user to make unauthorized modification to the router's software and functionality.

CVSS 4.0 · 1.9 Low EPSS < 1% KEV · Not listed
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R7000 R7000 Firmware Rax20 and 37 more
CVE-2026-0416

Improper input validation in certain NETGEAR routers allows unauthorized modification of protected router functionality

An insufficient input validation vulnerability in certain NETGEAR router models as listed allows an authenticated administrator with local network access to submit crafted input that bypasses intended management interface restrictions, resulting in unauthorized modification of protected router software or functionality.

CVSS 4.0 · 4.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-9210

Certain NETGEAR routers allow authenticated administrators to gain unintended control of the router

Insufficient input validation vulnerability in the listed NETGEAR models allows authenticated administrators connected to the local network to make unauthorized modification of router software and functionality.

CVSS 4.0 · 4.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-0418

Certain NETGEAR devices allow administrators to tamper with system

Insufficient configuration management in the listed devices allows authenticated administrators connected to the local network to tamper with the system.

CVSS 4.0 · 4.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-0417

Insufficient input validation in certain NETGEAR routers

Insufficient input validation vulnerability in the listed NETGEAR devices allows authenticated administrators connected to the local network to tamper with the router's integrity.

CVSS 4.0 · 4.3 Medium EPSS < 1% KEV · Not listed
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Mr60 Mr60 Firmware Mr70 and 51 more
CVE-2026-0410

Insufficient input validation in certain NETGEAR routers

Authenticated administrators connected to the local network can gain elevated access to the router and make unauthorized changes to router software and functionality.

CVSS 4.0 · 1.9 Low EPSS < 1% KEV · Not listed
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R7000 R7000 Firmware Rax20 and 35 more
CVE-2025-12946

Improper input validation in NETGEAR Nighthawk routers

A vulnerability in the speedtest feature of affected NETGEAR Nighthawk routers, caused by improper input validation, can allow attackers on the router's WAN side, using attacker-in-the-middle techniques (MiTM) to manipulate DNS responses and execute commands when speedtests are run. This issue affects RS700: through 1.0.7.82; RAX54Sv2 : before V1.1.6.36; RAX41v2: before V1.1.6.36; RAX50: before V1.2.14.114; RAXE500: before V1.2.14.114; RAX41: before V1.0.17.142; RAX43: before V1.0.17.142; RAX35v2: before V1.0.17.142; RAXE450: before V1.2.14.114; RAX43v2: before V1.1.6.36; RAX42: before V1.0.17.142; RAX45: before V1.0.17.142; RAX50v2: before V1.1.6.36; MR90: before V1.0.2.46; MS90: before V1.0.2.46; RAX42v2: before V1.1.6.36; RAX49S: before V1.1.6.36.

CVSS 4.0 · 4.4 Medium EPSS < 1% KEV · Not listed
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Mr90 Mr90 Firmware Ms90 and 33 more
CVE-2021-34982

NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability

NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code 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. When parsing the strings file, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13709.

CVSS 3.0 · 8.8 High EPSS < 1% KEV · Not listed
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D6220 D6220 Firmware D6400 and 102 more
CVE-2021-34983

NETGEAR Multiple Routers httpd Missing Authentication for Critical Function Information Disclosure Vulnerability

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.

CVSS 3.0 · 6.5 Medium EPSS < 1% KEV · Not listed
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D6220 D6220 Firmware D6400 and 101 more
CVE-2021-34991

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400v2 1.0.4.106_10.0.80 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. When parsing the uuid request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14110.

CVSS 3.1 · 8.8 High EPSS 5.7% KEV · Not listed
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Cax80 Cax80 Firmware D6220 and 85 more