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CVE-2021-41653

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...

Basic Information

CVE State
PUBLISHED
Reserved Date
September 27, 2021
Published Date
November 13, 2021
Last Updated
August 04, 2024
Vendor
n/a
Product
n/a
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.
Tags
nuclei_scanner

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

10.0

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploit Status

Proof of Concept Available
Yes (added 2021-11-29 06:39:43 UTC) Source

References

http://tp-link.com https://www.tp-link.com/us/press/security-advisory/ https://k4m1ll0.com/cve-2021-41653.html

Known Exploited Vulnerability Information

Source Added Date
The Shadowserver (via CIRCL) 2025-09-18 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41653.yaml 2025-04-25 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

likeww/CVE-2021-41653

Type: github • Created: 2021-11-29 06:39:43 UTC • Stars: 0

TP-Link TL-WR840N EU v5 Remote Code Execution

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Proof of Concept Exploit Available

  • Detected by Nuclei

  • Added to KEVIntel