What’s Vulnerable › Vulnerabilities

CVE-2021-40396

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-28 · updated 2026-06-17
• Weakness: CWE-276

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.

Affected products

• Advantech Deviceon/Iservice: 1.1.7

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1408
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1408

Get alerted when CVE-2021-40396 or the next vulnerability affects your stack