How severe is CVE-2020-16202?

CVE-2020-16202 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-16202 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-16202?

CVE-2020-16202 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-16202?

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-2020-16202 published?

CVE-2020-16202 was published on 2020-09-22 and last updated on 2026-06-17.

CVE-2020-16202

CVE-2020-16202 is a high-severity vulnerability in Advantech Webaccess 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Advantech Webaccess
Published: 2020-09-22
Last modified: 2026-06-17

Description

WebAccess Node (All versions prior to 9.0.1) has incorrect permissions set for resources used by specific services, which may allow code execution with system privileges.

Frequently asked questions

What is CVE-2020-16202?: WebAccess Node (All versions prior to 9.0.1) has incorrect permissions set for resources used by specific services, which may allow code execution with system privileges.
How severe is CVE-2020-16202?: CVE-2020-16202 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-16202 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-16202?: CVE-2020-16202 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-16202?: 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-2020-16202 published?: CVE-2020-16202 was published on 2020-09-22 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-261-01

Affected products (1)

cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*

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