CVE-2021-27254
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I. Basic Information for CVE-2021-27254
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7800. Authentication is not required to exploit this vulnerability. The specific flaw exists within the apply_save.cgi endpoint. This issue results from the use of hard-coded encryption key. An attacker can leverage this vulnerability to execute arbitrary code in the context of root. Was ZDI-CAN-12287.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用硬编码的口令
Source: NVD (National Vulnerability Database)
Vulnerability Title
Netgear NETGEAR 信任管理问题漏洞
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，攻击者可利用该漏洞在root上下文中执行任意代码。
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-2021-27254
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- https://www.zerodayinitiative.com/advisories/ZDI-21-252/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-27254
Same Patch Batch · NETGEAR · 2021-03-05 · 4 CVEs total
| CVE-2021-27255 | Netgear NETGEAR R7800 访问控制错误漏洞 | |
| CVE-2021-27256 | Netgear NETGEAR R7800 操作系统命令注入漏洞 | |
| CVE-2021-27257 | Netgear NETGEAR R7800 信任管理问题漏洞 |
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
V. Comments for CVE-2021-27254
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