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CVE-2021-41653

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tp-link TL-WR840N是中国普联（Tp-link）公司的一款无线路由器。 TP-Link TL-WR840N EU v5路由器 TL-WR840N(EU) v5 171211固件之前版本存在安全漏洞，设备中的PING功能对于IP地址提交的数据缺少过滤和转义，容易受到通过IP地址输入字段中精心制作的负载的远程代码执行的攻击。

AI Predicted 9.8 Difficulty: Easy EPSS 75.88% · P99

Public Exploits 1

Nuclei · 1 CVE-2021-41653.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2021-41653

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Tp-link TL-WR840N 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tp-link TL-WR840N是中国普联（Tp-link）公司的一款无线路由器。 TP-Link TL-WR840N EU v5路由器 TL-WR840N(EU) v5 171211固件之前版本存在安全漏洞，设备中的PING功能对于IP地址提交的数据缺少过滤和转义，容易受到通过IP地址输入字段中精心制作的负载的远程代码执行的攻击。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-41653

# POC Description Source Link Shenlong Link
1 TP-Link TL-WR840N EU v5 Remote Code Execution https://github.com/likeww/CVE-2021-41653 POC Details
2 The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a specially crafted payload in an IP address input field. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41653.yaml POC Details
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III. Intelligence Information for CVE-2021-41653

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Vendor Pages for CVE-2021-41653 (1)

Other References for CVE-2021-41653 (2)

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-41653

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