Stack-based Buffer Overflow in Edimax BR-6478AC Router
CVE-2026-10125

8.7HIGH

Key Information:

Vendor

Edimax

Status
Br-6478ac
Vendor
CVE Published:
30 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10125?

A stack-based buffer overflow vulnerability has been discovered in the Edimax BR-6478AC router, specifically in the function formPPPoESetup within the POST Request Handler component. The vulnerability arises from improper handling of the 'pppUserName' argument, allowing an attacker to manipulate the input and potentially execute arbitrary code remotely. This exploit can be initiated without physical access to the device, making it a significant risk for users. Publicly available exploit details raise concern for network security around affected devices, highlighting the need for immediate remediation.

Affected Version(s)

BR-6478AC 1.23

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-2026-10125 - Proof of Concept

References

https://vuldb.com/vuln/367302
vdb-entrytechnical-description
https://vuldb.com/vuln/367302/cti
signaturepermissions-required
https://vuldb.com/submit/818453
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)
.