Stack-based Buffer Overflow Vulnerability in D-Link DI-8100 Router
CVE-2025-3538

8.7HIGH

Key Information:

Vendor
D-link
Status
Di-8100
Vendor
CVE Published:
13 April 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A security flaw has been identified in the D-Link DI-8100 router’s jhttpd component, specifically within the auth_asp function located in the /auth.asp file. This vulnerability allows for a stack-based buffer overflow triggered by manipulation of the 'callback' argument. Attackers must be within the local network to exploit the issue, which could potentially lead to unauthorized access or command execution. Given the public disclosure of this exploit, it is crucial for users to secure their devices promptly.

Affected Version(s)

DI-8100 16.07.26A1

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-2025-3538 - Proof of Concept

References

https://vuldb.com/?id.304577
vdb-entrytechnical-description
https://vuldb.com/?ctiid.304577
signaturepermissions-required
https://vuldb.com/?submit.524224
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent 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

FizzL (VulDB User)
.