CVE-2021-40396

A privilege escalation vulnerability exists in the installation of Advantech DeviceOn/iService 1.1.7. A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

• CWE-276
• CWE-276

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1408Exploit, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1408Exploit, Third Party Advisory

Published

Jan 28, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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