Buffer Overflow Vulnerability in D-Link Router's Firmware
CVE-2025-7194

8.7HIGH

Key Information:

Vendor

D-link
Status
Di-500wf
Vendor
CVE Published:
8 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7194?

A stack-based buffer overflow vulnerability exists in the D-Link DI-500WF router's firmware, specifically within the sprintf function of the ip_position.asp file in the jhttpd component. This vulnerability can be exploited remotely through crafted input, potentially allowing unauthorized access and control over the device. Exploitation of this issue puts users at risk, as it enables an attacker to execute arbitrary code on the device. It is crucial for users to apply patches and ensure their systems are updated to mitigate these risks.

Affected Version(s)

DI-500WF 17.04.10A1T

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-2025-7194 - Proof of Concept

References

https://vuldb.com/?id.315133
vdb-entrytechnical-description
https://vuldb.com/?ctiid.315133
signaturepermissions-required
https://vuldb.com/?submit.607311
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

BluesCat (VulDB User)
.
CVE-2025-7194 : Buffer Overflow Vulnerability in D-Link Router's Firmware