Cyber Resilience

CVE-2021-38408

Critical

Published: 09 September 2021

Published
09 September 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0147 81.4th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-38408 is a critical-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Advantech Webaccess. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 18.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.

CWE(s)
CWE-121

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

advantech
webaccess
≤ 9.02

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References