OS Command Injection Vulnerability in D-Link DIR-823X Router
CVE-2026-2175

8.6HIGH

Key Information:

Vendor

D-link
Status
Dir-823x
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2175?

A security weakness has been discovered in the D-Link DIR-823X router, specifically within the sub_420618 function of the /goform/set_upnp file. This vulnerability allows attackers to manipulate the upnp_enable argument, potentially leading to OS command injection. The remote exploit is publicly available and poses a threat to network integrity. Immediate action is recommended to mitigate risks associated with this vulnerability.

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Affected Version(s)

DIR-823X 250416

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-2026-2175 - Proof of Concept

References

https://vuldb.com/?id.344876
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344876
signaturepermissions-required
https://vuldb.com/?submit.749263
third-party-advisory

CVSS V4

Score:
8.6
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

jiefengliang (VulDB User)
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