Buffer Overflow Vulnerability in TP-Link TL-WR940N Router
CVE-2025-6151
8.7HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2025-6151?
A buffer overflow vulnerability has been identified in the TP-Link TL-WR940N V4 router, specifically affecting the functionality associated with the file /userRpm/WanSlaacCfgRpm.htm. The flaw arises from improper handling of the 'dnsserver1' argument, allowing attackers to exploit this vulnerability remotely. Given its public disclosure, this exploit may be actively targeted, compromising the device's security.
Affected Version(s)
TL-WR940N V4
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.
References
CVSS V4
Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
MTHG (VulDB User)