Buffer Overflow Vulnerability in TOTOLINK EX1200T Remote Management
CVE-2025-6336

8.7HIGH

Key Information:

Vendor

Totolink
Status
Ex1200t
Vendor
CVE Published:
20 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6336?

A vulnerability affecting the TOTOLINK EX1200T device allows remote attackers to exploit an unspecified function within the HTTP POST Request Handler component. Specifically, manipulating the 'submit-url' argument can trigger a buffer overflow, potentially leading to unauthorized access or denial of service. The problem is rooted in the function located at /boafrm/formTmultiAP and has been publicly disclosed, making it essential for users to apply security measures and updates promptly.

Affected Version(s)

EX1200T 4.1.2cu.5232_B20210713

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-2025-6336 - Proof of Concept

References

https://vuldb.com/?id.313332
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313332
signaturepermissions-required
https://vuldb.com/?submit.596690
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

YeLeipeng_ (VulDB User)
.
CVE-2025-6336 : Buffer Overflow Vulnerability in TOTOLINK EX1200T Remote Management