How severe is CVE-2020-16229?

CVE-2020-16229 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-16229 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-16229?

CVE-2020-16229 affects Advantech Webaccess/hmi Designer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-16229?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-16229 published?

CVE-2020-16229 was published on 2020-08-06 and last updated on 2026-06-17.

CVE-2020-16229

CVE-2020-16229 is a high-severity vulnerability in Advantech Webaccess/hmi Designer with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-843.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-843
Affected product: Advantech Webaccess/hmi Designer
Published: 2020-08-06
Last modified: 2026-06-17

Description

Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Processing specially crafted project files lacking proper validation of user supplied data may cause a type confusion condition, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.

Frequently asked questions

What is CVE-2020-16229?: Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Processing specially crafted project files lacking proper validation of user supplied data may cause a type confusion condition, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.
How severe is CVE-2020-16229?: CVE-2020-16229 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-16229 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-16229?: CVE-2020-16229 affects Advantech Webaccess/hmi Designer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-16229?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-16229 published?: CVE-2020-16229 was published on 2020-08-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:advantech:webaccess\/hmi_designer:*:*:*:*:*:*:*:*

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