Buffer Overflow Vulnerability in TOTOLINK N600R Wireless Router
CVE-2025-11444

8.7HIGH

Key Information:

Vendor

Totolink
Status
N600r
Vendor
CVE Published:
8 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11444?

A vulnerability exists in the TOTOLINK N600R router, specifically related to the function setWiFiBasicConfig within the HTTP Request Handler. This vulnerability allows an attacker to remotely manipulate the wepkey argument, potentially leading to a buffer overflow condition. Such an exploit can allow unauthorized access and manipulation of the affected device, compromising the device's security and functionality. Users are advised to review their firmware versions and apply necessary updates to mitigate this vulnerability.

Affected Version(s)

N600R 4.3.0cu.7866_B20220506

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-2025-11444 - Proof of Concept

CVE-2025-11444 - Proof of Concept

References

https://vuldb.com/?id.327381
vdb-entrytechnical-description
https://vuldb.com/?ctiid.327381
signaturepermissions-required
https://vuldb.com/?submit.666915
third-party-advisory

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

z472421519 (VulDB User)
JSON
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CVE-2025-11444 : Buffer Overflow Vulnerability in TOTOLINK N600R Wireless Router