OS Command Injection Vulnerability in D-Link DIR-823X Web Management Interface
CVE-2026-2063

5.1MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2063?

A significant security flaw has been identified in the D-Link DIR-823X router's web management interface, specifically within the /goform/set_ac_server file. This vulnerability allows attackers to manipulate the ac_server argument, leading to unauthorized OS command injection. Remote exploitation of this flaw poses a serious threat, as it could facilitate a range of malicious activities. Publicly disclosed exploits increase the urgency for affected users to assess their security posture and implement necessary mitigations.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

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-2026-2063 - Proof of Concept

References

https://vuldb.com/?id.344623
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344623
signaturepermissions-required
https://vuldb.com/?submit.744720
third-party-advisory

CVSS V4

Score:
5.1
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

jiefengliang (VulDB User)
JSON
.