Stack-Based Buffer Overflow in D-Link DIR-816 Router
CVE-2025-5630

9.3CRITICAL

Key Information:

Vendor

D-link
Status
Dir-816
Vendor
CVE Published:
5 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5630?

A stack-based buffer overflow vulnerability exists in the D-Link DIR-816 router, specifically within the file /goform/form2lansetup.cgi. This issue arises when the 'ip' argument is manipulated, allowing for potential remote exploitation. This vulnerability is particularly concerning as it affects products that are no longer supported, exposing users to security risks. Organizations utilizing this product should consider upgrading or implementing necessary security measures to mitigate potential threats.

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Affected Version(s)

DIR-816 1.10CNB05

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-2025-5630 - Proof of Concept

References

https://vuldb.com/?id.311116
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311116
signaturepermissions-required
https://vuldb.com/?submit.589779
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
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

pjqwudi (VulDB User)
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