CVE-2021-42703: AzeoTech DAQFactory

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-15 · updated 2026-06-17
Weakness: CWE-79

Description

This vulnerability could allow an attacker to send malicious Javascript code resulting in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage, and performing unintended browser action.

Affected products

ICS-CERT Advantech WebAccess HMI Designer: before 2.1.11.0 — fixed in 2.1.11.0

How to fix

Upgrade to a fixed version: ICS-CERT Advantech WebAccess HMI Designer 2.1.11.0. Check the vendor advisory for mitigations.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01
https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01

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