Buffer Overflow Vulnerability in TOTOLINK EX1200T HTTP POST Request Handler
CVE-2025-6129

8.7HIGH

Key Information:

Vendor

Totolink
Status
Ex1200t
Vendor
CVE Published:
16 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6129?

A buffer overflow vulnerability has been identified in the TOTOLINK EX1200T, specifically within the HTTP POST Request Handler component. This issue arises due to improper handling of the 'submit-url' argument within the '/boafrm/formSaveConfig' file, enabling potential attackers to manipulate the input and execute arbitrary code. The flaw can be exploited remotely, posing significant security risks to affected devices. Rapid disclosure of the exploit has occurred, emphasizing the need for immediate mitigation strategies by users.

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-2025-6129 - Proof of Concept

References

https://vuldb.com/?id.312598
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312598
signaturepermissions-required
https://vuldb.com/?submit.592695
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

wang_lun (VulDB User)
.
CVE-2025-6129 : Buffer Overflow Vulnerability in TOTOLINK EX1200T HTTP POST Request Handler