CVE-2020-12022

Name: CVE-2020-12022
Creator: NVD / NIST
Published: 2020-05-08T12:15:11.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.67%

Last modified Jun 17, 2026

CVE-2020-12022 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that could allow an attacker to inject specially crafted input into memory where it can be executed.. EPSS estimates a 1.67% chance of exploitation in the next 30 days.

Description

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that could allow an attacker to inject specially crafted input into memory where it can be executed.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.67%

73.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Advantech	Webaccess	<= 8.4.4
Advantech	Webaccess	9.0.0

References

https://www.us-cert.gov/ics/advisories/icsa-20-128-01Third Party Advisory, US Government Resource
https://www.zerodayinitiative.com/advisories/ZDI-20-598/Third Party Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-128-01Third Party Advisory, US Government Resource
https://www.zerodayinitiative.com/advisories/ZDI-20-598/Third Party Advisory

Timeline

Published: May 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12022?

How severe is CVE-2020-12022?

CVE-2020-12022 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.67% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12022?

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-2020-12022?

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

Scan your code now

Source: NVD / NIST