Stack-Based Buffer Overflow in Tenda BE12 Pro Router
CVE-2026-15691

8.7HIGH

Key Information:

Vendor

Tenda
Status
Be12 Pro
Vendor
CVE Published:
14 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15691?

A security flaw has been identified in the Tenda BE12 Pro router, particularly in the fromSafeClientFilter function located in the /goform/SafeClientFilter file. This vulnerability can be exploited by manipulating the argument page, leading to a stack-based buffer overflow. Given its remote exploitability, attackers are able to initiate this attack from outside the network, putting user data and network integrity at significant risk. The public disclosure of this exploit increases the urgency for users to implement protective measures.

Affected Version(s)

BE12 Pro 16.03.66.23

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-2026-15691 - Proof of Concept

References

https://vuldb.com/vuln/378238
vdb-entrytechnical-description
https://vuldb.com/vuln/378238/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15691
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

dexingzhiqing (VulDB User)
.