Buffer Overflow Vulnerability in TOTOLINK EX1200T by TOTOLINK
CVE-2025-5907

8.7HIGH

Key Information:

Vendor

Totolink
Status
Ex1200t
Vendor
CVE Published:
10 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5907?

A buffer overflow vulnerability has been identified in the TOTOLINK EX1200T router, specifically within the HTTP POST Request Handler component. This vulnerability can potentially allow attackers to manipulate the internal code by sending crafted requests, leading to execution of arbitrary code. The attack can be conducted remotely, making it critical for users of the affected versions to apply security updates promptly to mitigate risks. The vulnerability has been publicly disclosed, increasing the urgency for patching and securing the affected devices.

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-2025-5907 - Proof of Concept

References

https://vuldb.com/?id.311680
vdb-entry
https://vuldb.com/?ctiid.311680
signaturepermissions-required
https://vuldb.com/?submit.592267
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-2025-5907 : Buffer Overflow Vulnerability in TOTOLINK EX1200T by TOTOLINK