Stack-Based Buffer Overflow in Tenda M3 Router
CVE-2025-15231

8.7HIGH

Key Information:

Vendor

Tenda
Status
M3
Vendor
CVE Published:
30 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15231?

A stack-based buffer overflow vulnerability affects the Tenda M3 router, specifically within the formSetRemoteVlanInfo function in the /goform/setVlanInfo file. By manipulating the arguments ID, vlan, and port, an attacker can execute remote commands that trigger this vulnerability. Publicly disclosed, this flaw poses a significant risk as it can be exploited to compromise the device remotely. Organizations using the Tenda M3 1.0.0.13(4903) should ensure prompt application of security patches to mitigate risks.

Affected Version(s)

M3 1.0.0.13(4903)

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-2025-15231 - Proof of Concept

References

https://vuldb.com/?id.338627
vdb-entrytechnical-description
https://vuldb.com/?ctiid.338627
signaturepermissions-required
https://vuldb.com/?submit.725493
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

dwbruijn (VulDB User)
JSON
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CVE-2025-15231 : Stack-Based Buffer Overflow in Tenda M3 Router