Command Injection Vulnerability in D-Link DIR-816 Router
CVE-2026-8344

5.3MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8344?

A command injection vulnerability has been discovered in the D-Link DIR-816 router, specifically within the sub_445E7C function of the /goform/formDMZ.cgi file. This weakness allows an attacker to manipulate commands remotely, making it possible to execute arbitrary code. The exploit has been publicly disclosed, which heightens the risk of potential attacks. It is crucial for users to apply patches and follow best security practices to safeguard their devices.

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-2026-8344 - Proof of Concept

References

https://vuldb.com/vuln/362660
vdb-entrytechnical-description
https://vuldb.com/vuln/362660/cti
signaturepermissions-required
https://vuldb.com/submit/811378
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)
.