Integer Overflow Vulnerability in TP-LINK TL-WR840N Router
CVE-2022-25062

7.5HIGH

Key Information:

Vendor
Tp-link
Status
Tl-wr840n Firmware
Vendor
CVE Published:
25 February 2022

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A vulnerability exists in the TP-LINK TL-WR840N router that allows an attacker to exploit an integer overflow through the function dm_checkString. By sending a specially crafted HTTP request, an attacker could trigger a Denial of Service (DoS), rendering the device unresponsive. This issue highlights the need for securing routers against potential threats that could disrupt service availability.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-25062
Created by exploitwritter

References

http://tp-link.com
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http://router.com
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https://east-trowel-102.notion.site/CVE-2021-XXXX-RCE-Int...
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.