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🟣 EPSS 28%

What is CVE-2022-25062?

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.

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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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EPSS Score

28% chance of being exploited in the next 30 days.

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

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