CVE-2021-27255
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I. Basic Information for CVE-2021-27255
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the refresh_status.aspx endpoint. The issue results from a lack of authentication required to start a service on the server. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12360.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Netgear NETGEAR R7800 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netgear NETGEAR R7800是美国网件（Netgear）公司的一款无线路由器。 NETGEAR R7800 存在访问控制错误漏洞，攻击者可利用该漏洞在受影响的设备安装上执行任意代码。
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-2021-27255
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.zerodayinitiative.com/advisories/ZDI-21-263/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-27255
Same Patch Batch · NETGEAR · 2021-03-05 · 4 CVEs total
| CVE-2021-27254 | Netgear NETGEAR 信任管理问题漏洞 | |
| 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
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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-306
- CVE-2021-47940
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V. Comments for CVE-2021-27255
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