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Dir 823x Firmware CVE-2026-2129

HIGH
Command Injection (CWE-77)
2026-02-08 cna@vuldb.com
7.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.2 HIGH
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 11, 2026 - 18:59 vuln.today
Public exploit code
CVE Published
Feb 08, 2026 - 02:15 nvd
HIGH 7.2

DescriptionCVE.org

A vulnerability was found in D-Link DIR-823X 250416. Affected by this issue is some unknown functionality of the file /goform/set_ac_status. Performing a manipulation of the argument ac_ipaddr/ac_ipstatus/ap_randtime results in os command injection. The attack may be initiated remotely. The exploit has been made public and could be used.

AnalysisAI

Unauthenticated remote attackers can execute arbitrary OS commands on D-Link DIR-823X routers through command injection in the /goform/set_ac_status endpoint via manipulation of ac_ipaddr, ac_ipstatus, or ap_randtime parameters. Public exploit code exists for this vulnerability, and no patch is currently available, leaving affected devices at immediate risk.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as high-privilege user
Exploit
Send crafted request to /goform/set_ac_status
Execution
Inject OS commands in ac_ipaddr/ac_ipstatus/ap_randtime parameters
Impact
Execute arbitrary commands with device privileges

Vulnerability AssessmentAI

Exploitation D-Link DIR-823X firmware 250416; attacker must possess high-privilege credentials (admin account); /goform/set_ac_status endpoint must be accessible; no default authentication bypass present — requires valid administrative access to exploit command injection. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.2 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker could exploit this flaw, os command injection.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify and inventory all D-Link DIR-823X 250416 devices in your environment and isolate them from critical network segments if possible. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-2129 vulnerability details – vuln.today

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