Stack-Based Buffer Overflow in D-Link DIR-665 Model
CVE-2025-6158

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-665
Vendor
CVE Published:
17 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6158?

A stack-based buffer overflow vulnerability exists in the D-Link DIR-665 model due to improper handling of HTTP POST requests within the sub_AC78 function. This flaw can be exploited remotely, allowing attackers to execute arbitrary code on unmaintained devices. Users of affected versions should take immediate action as public exploit details have been disclosed, emphasizing the need for prompt remediation to safeguard their networks.

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Affected Version(s)

DIR-665 1.00

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-2025-6158 - Proof of Concept

References

https://vuldb.com/?id.312633
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312633
signaturepermissions-required
https://vuldb.com/?submit.593161
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

xiaobor123 (VulDB User)
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