VULNERABILITY INTELLIGENCE

CVE-2021-43931

CVSS score9.8 CRITICAL

EPSS probability1.48%

CISA KEVNot currently listed

Published2021-12-06

Last modified2026-06-17

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

Description

The authentication algorithm of the WebHMI portal is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

Weakness classification

nvd@nist.gov: CWE-287

Primary references

ics-cert@hq.dhs.gov — Patch, Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory, US Government Resource