Cyber Resilience

CVE-2021-33002

High

Published: 24 June 2021

Published
24 June 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0027 50.7th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-33002 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Advantech Webaccess\/Hmi Designer. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 49.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Opening a maliciously crafted project file may cause an out-of-bounds write, which may allow an attacker to execute arbitrary code. User interaction is require on the WebAccess HMI Designer (versions 2.1.9.95 and prior).

CWE(s)
CWE-787

Related Threats

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

Affected Assets

advantech
webaccess\/hmi designer
≤ 2.1.9.95

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References