Buffer Overflow Vulnerability in TOTOLINK T10 by TOTOLINK
CVE-2025-5902

8.7HIGH

Key Information:

Vendor

Totolink
Status
T10
Vendor
CVE Published:
9 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5902?

A buffer overflow vulnerability exists in the TOTOLINK T10 router affecting the setUpgradeFW function of the POST Request Handler. This flaw is triggered when an attacker manipulates the argument slaveIpList, potentially allowing remote exploitation of the device. Given that the exploit has been publicly disclosed, it's crucial for users to be aware of this vulnerability and apply any available patches or mitigations to safeguard their devices against exploitation.

Affected Version(s)

T10 4.1.8cu.5207

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-2025-5902 - Proof of Concept

References

https://vuldb.com/?id.311675
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311675
signaturepermissions-required
https://vuldb.com/?submit.592246
third-party-advisory

EPSS Score

5% chance of being exploited in the next 30 days.

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

.