Null Pointer Dereference in D-Link DIR-823X
CVE-2025-0492

8.7HIGH

Key Information:

Vendor
D-link
Status
Dir-823x
Vendor
CVE Published:
15 January 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A vulnerability exists in the D-Link DIR-823X models 240126 and 240802 due to improper handling of a function resulting in a null pointer dereference. This flaw allows remote attackers to exploit the device, potentially leading to a denial of service. Awareness of this vulnerability is crucial as it has been publicly disclosed, increasing the risk of exploitation.

Affected Version(s)

DIR-823X 240126

DIR-823X 240802

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-2025-0492 - Proof of Concept

References

https://vuldb.com/?id.291937
vdb-entrytechnical-description
https://vuldb.com/?ctiid.291937
signaturepermissions-required
https://vuldb.com/?submit.475301
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
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

hand_king (VulDB User)
.