Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2022-40740— Realtek GPON router - Command Injection

Quick assessment

Affected
Realtek GPON router
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Realtek GPON router是中国瑞昱半导体（Realtek）公司的一系列路由器。 Realtek GPON router存在安全漏洞，该漏洞源于其对特殊字符的过滤不足导致具有管理员权限的远程攻击者可以执行命令注入攻击，执行任意系统命令，操纵系统或中断服务。

CVSS 7.2 · High EPSS 1.48% · P73
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-40740

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Realtek GPON router - Command Injection
Source: CVE Program / CVE List V5
Vulnerability Description
Realtek GPON router has insufficient filtering for special characters. A remote attacker authenticated as an administrator can exploit this vulnerability to perform command injection attacks, to execute arbitrary system command, manipulate system or disrupt service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Realtek GPON router 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Realtek GPON router是中国瑞昱半导体（Realtek）公司的一系列路由器。 Realtek GPON router存在安全漏洞，该漏洞源于其对特殊字符的过滤不足导致具有管理员权限的远程攻击者可以执行命令注入攻击，执行任意系统命令，操纵系统或中断服务。
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

Vendor Product Affected Versions CPE Subscribe
Realtek GPON router SDK 1.9 -

II. Public POCs for CVE-2022-40740

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-40740

请登录查看更多情报信息。

Other References for CVE-2022-40740 (1)

IV. Related Vulnerabilities

Same vendor: Realtek
Same weakness: CWE-78

V. Comments for CVE-2022-40740

No comments yet

Leave a comment