CVE-2021-40396

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-276

Affected software

No affected versions have been published.

Timeline

Published
Jan 28, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-40396: High severity, CVSS 8.8 | Vulnix