What is CVE-2021-33004?

CVE-2021-33004 is a high-severity vulnerability in Advantech Webaccess\/hmi Designer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2021-06-24.

How severe is CVE-2021-33004?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Advantech Webaccess\/hmi Designer

CVE-2021-33004

The affected product is vulnerable to memory corruption condition due to lack of proper validation of user supplied files, which may allow an attacker to execute arbitrary code. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).

Vulnerability class: Buffer Overflow

EPSS: 0.009 (57.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Advantech Webaccess\/hmi_designer
N/a Webaccess Hmi Designer — versions versions 2.1.9.95 and prior

Weakness classification (CWE)

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-33004?: CVE-2021-33004 is a high-severity vulnerability in Advantech Webaccess\/hmi Designer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2021-06-24.
How severe is CVE-2021-33004?: High severity. CVSS v3 base score is 7.8 out of 10.