Stack-Based Buffer Overflow in D-Link DIR-815 Router
CVE-2025-6328

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-815
Vendor
CVE Published:
20 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6328?

A security vulnerability has been identified in the D-Link DIR-815 version 1.01, specifically in the 'hedwig.cgi' file within the function sub_403794. This flaw allows attackers to execute remote exploitation through a stack-based buffer overflow. The vulnerability has been publicly disclosed and may be targeted by malicious actors seeking unauthorized access or control over affected devices.

Affected Version(s)

DIR-815 1.01

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-2025-6328 - Proof of Concept

References

https://vuldb.com/?id.313324
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313324
signaturepermissions-required
https://vuldb.com/?submit.596439
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

liuchangwei (VulDB User)
.
CVE-2025-6328 : Stack-Based Buffer Overflow in D-Link DIR-815 Router