Command Injection Vulnerability in D-Link DIR-816 Router
CVE-2026-8345

5.3MEDIUM

Key Information:

Vendor

D-link
Status
Dir-816
Vendor
CVE Published:
11 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8345?

A security vulnerability has been identified in the D-Link DIR-816 router, particularly within the function sub_445E7C located in /goform/singlePortForward. This vulnerability allows an attacker to manipulate the 'ip_address' argument, leading to remote command injection attacks. Due to its public disclosure, this exploit poses a significant risk to users who have not applied corrective measures. It is critical for administrators to promptly apply security updates to mitigate potential unauthorized access.

Affected Version(s)

DIR-816 1.10CNB05_R1B011D88210

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-2026-8345 - Proof of Concept

References

https://vuldb.com/vuln/362661
vdb-entrytechnical-description
https://vuldb.com/vuln/362661/cti
signaturepermissions-required
https://vuldb.com/submit/811379
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

stksgg (VulDB User)
.