Command Injection Vulnerability in D-Link DSL-3782 Router
CVE-2026-90880

5.3MEDIUM

Key Information:

Vendor

D-link
Status
Dsl-3782
Vendor
CVE Published:
15 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90880?

A security flaw has been identified in the D-Link DSL-3782 router that permits remote command injection through the Diagnostics component. This vulnerability stems from improper handling of the Addr argument in the Diagnostics.asp script, allowing unauthorized execution of commands. Attackers can potentially exploit this flaw to gain control over the system. With an exploit already available publicly, it is crucial for users to apply security updates and ensure their networks are protected from potential attacks.

Affected Version(s)

DSL-3782 2016-07-28

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-2026-90880 - Proof of Concept

References

https://vuldb.com/vuln/403474
vdb-entrytechnical-description
https://vuldb.com/vuln/403474/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90880
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

CindyCity (VulDB User)
.