Stack-based Buffer Overflow in Tenda O3 Router
CVE-2025-12210

8.7HIGH

Key Information:

Vendor

Tenda
Status
O3
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12210?

A stack-based buffer overflow vulnerability exists in Tenda O3 routers, specifically within the SetValue/GetValue functions of the /goform/AdvSetLanip file. The flaw is triggered by manipulating the lanIp argument, allowing potential attackers to execute arbitrary code remotely. Given that the exploit is publicly available, users are advised to implement security measures to mitigate the risk associated with this vulnerability.

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Affected Version(s)

O3 1.0.0.10(2478)

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-2025-12210 - Proof of Concept

References

https://vuldb.com/?id.329880
vdb-entrytechnical-description
https://vuldb.com/?ctiid.329880
signaturepermissions-required
https://vuldb.com/?submit.673264
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

wxhwxhwxh_mie (VulDB User)
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