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CVE-2026-12197— Ruijie EG105G-P JSON-RPC Diagnose Endpoint diagnose nslookup command injection

CVSS 7.2 · High EPSS 2.38% · P82

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
RuijieEG105G-P2.340affected
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I. Basic Information for CVE-2026-12197

Vulnerability Information
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Vulnerability Title
Ruijie EG105G-P JSON-RPC Diagnose Endpoint diagnose nslookup command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in Ruijie EG105G-P 2.340. The impacted element is the function nslookup of the file /cgi-bin/luci/api/diagnose of the component JSON-RPC Diagnose Endpoint. Performing a manipulation of the argument params.target results in command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Ruijie eg105g-p 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
eg105g-p是中国Ruijie公司的一款企业级路由器。 Ruijie EG105G-P 2.340版本存在安全漏洞，该漏洞源于对JSON-RPC Diagnose Endpoint组件中/cgi-bin/luci/api/diagnose文件的nslookup函数中的params.target参数操作不当，导致命令注入攻击。
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

VendorProductAffected VersionsCPESubscribe
RuijieEG105G-P 2.340 cpe:2.3:a:ruijie:eg105g-p:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-12197

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III. Intelligence Information for CVE-2026-12197

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Other References for CVE-2026-12197 (1)

IV. Related Vulnerabilities

Same vendor: Ruijie
Same weakness: CWE-77

V. Comments for CVE-2026-12197

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