CVE-2020-16207

Name: CVE-2020-16207
Creator: NVD / NIST
Published: 2020-08-06T19:15:13.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 3.74%

Last modified Jun 17, 2026

CVE-2020-16207 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Multiple heap-based buffer overflow vulnerabilities may be exploited by opening specially crafted project files that may overflow the heap, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.. EPSS estimates a 3.74% chance of exploitation in the next 30 days.

Description

Advantech WebAccess HMI Designer, Versions 2.1.9.31 and prior. Multiple heap-based buffer overflow vulnerabilities may be exploited by opening specially crafted project files that may overflow the heap, which may allow remote code execution, disclosure/modification of information, or cause the application to crash.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

3.74%

88.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Advantech	Webaccess\/Hmi Designer	<= 2.1.9.31

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-219-02Third Party Advisory, US Government Resource
https://www.zerodayinitiative.com/advisories/ZDI-20-950/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-951/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-955/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-958/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-959/Third Party Advisory, VDB Entry
https://us-cert.cisa.gov/ics/advisories/icsa-20-219-02Third Party Advisory, US Government Resource
https://www.zerodayinitiative.com/advisories/ZDI-20-950/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-951/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-955/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-958/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-959/Third Party Advisory, VDB Entry

Timeline

Published: Aug 6, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-16207?

How severe is CVE-2020-16207?

CVE-2020-16207 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.74% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16207?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-16207?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST