CVE-2021-27253
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I. Basic Information for CVE-2021-27253
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Nighthawk R7800. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the rc_service parameter provided to apply_bind.cgi. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12303.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Netgear NETGEAR 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netgear NETGEAR是美国网件（Netgear）公司的一款路由器。连接两个或多个网络的硬件设备，在网络间起网关的作用。 NETGEAR Nighthawk R7800 存在安全漏洞，该漏洞允许网络邻近攻击者在受影响的设备上执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-27253
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|---|
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- https://www.zerodayinitiative.com/advisories/ZDI-21-249/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-27253
Same Patch Batch · NETGEAR · 2021-04-14 · 3 CVEs total
| CVE-2021-27252 | Netgear NETGEAR R7800 操作系统命令注入漏洞 | |
| CVE-2021-27251 | Netgear NETGEAR 安全漏洞 |
IV. Related Vulnerabilities
Same vendor: NETGEAR
- CVE-2026-24714
NETGEAR PR2000 安全漏洞 - CVE-2026-0404
Insufficient input validation in NETGEAR Orbi routers - CVE-2026-0408
Path traversal vulnerability in Netgear WiFi Range Extenders - CVE-2026-0407
Authentication bypass in NETGEAR WiFi Range Extenders via ne - CVE-2026-0406
Insufficient input validation in NETGEAR Nighthawk router XR
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
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OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading
V. Comments for CVE-2021-27253
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