Dir 823x Firmware
CVE-2026-2120
HIGH
Severity by source
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
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was identified in D-Link DIR-823X 250416. This affects an unknown function of the file /goform/set_server_settings of the component Configuration Parameter Handler. The manipulation of the argument terminal_addr/server_ip/server_port leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.
AnalysisAI
Remote code execution in D-Link DIR-823X routers through OS command injection in the /goform/set_server_settings endpoint allows unauthenticated attackers to execute arbitrary commands by manipulating terminal_addr, server_ip, or server_port parameters. Public exploit code exists for this vulnerability, and no patch is currently available, leaving affected devices at high risk.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | D-Link DIR-823X firmware 250416; attacker requires high-privilege administrative credentials to access /goform/set_server_settings endpoint; vulnerable configuration parameter handler must be enabled for remote OS command injection exploitation. 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 production and isolate affected units from critical network segments. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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External POC / Exploit Code
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