Dir 823x Firmware
CVE-2026-2157
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate as high-privilege admin
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ExploitSend crafted HTTP request to /goform/set_static_route_table
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ExecutionInject OS commands in interface/destip/netmask/gateway/metric parameters
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ImpactExecute arbitrary commands as root
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | D-Link DIR-823X firmware 250416 with /goform/set_static_route_table endpoint accessible. Requires high-privilege administrative authentication (PR:H). Vulnerable function: sub_4175CC in static route configuration handler. |
| Impact | CVSS 7.2 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: High. User interaction: None. Exploitable via remote/network. Public exploit/POC available. |
| Exploit ScenarioDerived | A remote attacker could exploit this flaw, os command injection. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Remote code execution in D-Link DIR-823X routers through OS command injection in the static route configuration endpoint allows unauthenticated remote attackers to execute arbitrary commands with high privileges. The vulnerability affects the /goform/set_static_route_table function and can be exploited by manipulating interface, destination IP, netmask, gateway, or metric parameters. Public exploit code exists for this vulnerability, and no patch is currently available.
Earlier versions of this analysis (1)
A security vulnerability has been detected in D-Link DIR-823X 250416. This affects the function sub_4175CC of the file /goform/set_static_route_table. [CVSS 7.2 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-77 (Command Injection). Affects Dir-823X Firmware. A security vulnerability has been detected in D-Link DIR-823X 250416. This affects the function sub_4175CC of the file /goform/set_static_route_table. Such manipulation of the argument interface/destip/netmask/gateway/metric leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.
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- Exploit and PoC references, threat intelligence from 22 sources
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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
Lifecycle Timeline
2DescriptionCVE.org
A security vulnerability has been detected in D-Link DIR-823X 250416. This affects the function sub_4175CC of the file /goform/set_static_route_table. Such manipulation of the argument interface/destip/netmask/gateway/metric leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.
Executive ViewAI
A high-severity vulnerability in D-Link DIR-823X routers could allow unauthorized attackers to modify network routing configurations, potentially enabling man-in-the-middle attacks or network traffic interception. Organizations using affected D-Link routers face immediate risk as public exploits are available and no patch has been released by the vendor.
Disable remote management access to affected routers; implement network segmentation to limit administrative access to trusted networks only; deploy Web Application Firewall (WAF) rules to block POST requests to /goform/set_static_route_table; restrict router access via IP whitelisting; monitor router configuration changes for unauthorized modifications; consider temporary replacement with patched alternative devices for critical network segments.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Affected Products (CPE)CVE.org
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