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{"analysis": {"en": {"generated_at": "2026-04-18T13:32:16.764163+00:00", "value": {"mitigation_remediation": ["Apply any available firmware update from D-Link that addresses the /goform/set_ipv6 command\u2011injection flaw.", "If a firmware fix is not yet available, block or restrict remote access to the router\u2019s web\u2011management interface, particularly the /goform/set_ipv6 endpoint, using firewall rules or local access controls.", "Disable remote IPv6 configuration or remove the vulnerable endpoint from the web interface to eliminate the attack surface until a patch is applied."], "summary": {"action": "Assess Impact", "impact": "Remote OS command execution"}, "threat_synthesis": {"affected_systems": "The vulnerability exists in D-Link\u2019s DIR-823X router running firmware build 250416. No other firmware revisions are known to be impacted.", "description_and_impact": "A subroutine in the DIR-823X firmware\u2019s /goform/set_ipv6 handler allows an attacker to inject and execute arbitrary operating\u2011system commands. The flaw is exploitable remotely, yielding full control over the device\u2019s operating system. An attacker could compromise confidentiality, integrity, and availability by modifying system configuration, exfiltrating data, or using the router as a pivot for further attacks.", "risk_and_exploitability": "The CVSS score of 5.1 indicates moderate severity, and the EPSS <1% suggests a low likelihood of exploitation in the wild. The vulnerability is not identified in CISA\u2019s KEV catalog. Based on the description, the likely attack vector is via HTTP access to the device\u2019s web interface and the ability to submit crafted parameters to the /goform/set_ipv6 endpoint. If it is reachable from external networks, an attacker could create a long\u2011lived backdoor or modify routing tables."}}}}, "created": "2026-02-09T10:49:40.581760+00:00", "updated": "2026-04-18T13:45:45.666806+00:00", "vendors": ["d-link", "d-link$PRODUCT$dir-823x"]}