CVE-2021-40397

7.8 highEPSS 0.9%

High (7.8) in advantech wise-paas\/ota. EPSS 0.9% chance of exploitation in the next 30 days.

A privilege escalation vulnerability exists in the installation of Advantech WISE-PaaS/OTA Server 3.0.9. 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.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-276
Published: 2022-01-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

advantech:wise-paas\/ota

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1409
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1409

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