Stack-Based Buffer Overflow in D-Link DI-8100 Router
CVE-2025-7908

8.7HIGH

Key Information:

Vendor

D-link
Status
Di-8100
Vendor
CVE Published:
20 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7908?

A stack-based buffer overflow vulnerability exists in the D-Link DI-8100 version 1.0, specifically in the jhttpd component's sprintf function exposed in /ddns.asp?opt=add. An attacker can exploit this vulnerability remotely by manipulating the mx argument, which could lead to arbitrary code execution on the affected device. The potential for public exploitation of this vulnerability underscores the necessity for immediate attention and remediation.

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Affected Version(s)

DI-8100 1.0

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-2025-7908 - Proof of Concept

References

https://vuldb.com/?id.317023
vdb-entrytechnical-description
https://vuldb.com/?ctiid.317023
signaturepermissions-required
https://vuldb.com/?submit.618582
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

bazhuayu (VulDB User)
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