OS Command Injection Vulnerability in D-Link DIR-823X Router
CVE-2026-2157

8.6HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2157?

A security vulnerability has been identified in the D-Link DIR-823X 250416, specifically within the sub_4175CC function in the file /goform/set_static_route_table. This vulnerability allows for OS command injection when manipulating parameters such as interface, destip, netmask, gateway, and metric. This can be exploited remotely, enabling attackers to execute arbitrary commands on the affected device. The complexity of this attack is relatively low, making it crucial for users to apply recommended security measures and updates.

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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-2026-2157 - Proof of Concept

References

https://vuldb.com/?id.344859
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344859
signaturepermissions-required
https://vuldb.com/?submit.748376
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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