CVE-2021-43931

CRITICAL

webhmi_firmware < 4.1 - Authentication Bypass via Weak Implementation

Title source: llm

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.

References (1)

Core 1

Core References

Patch, Third Party Advisory, US Government Resource x_refsource_misc

https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03

Scores

CVSS v3 9.8

EPSS 0.0139

EPSS Percentile 68.9%

Attack Vector NETWORK

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

Details

CWE

CWE-287

Status published

Products (1)

webhmi/webhmi_firmware < 4.1

Published Dec 06, 2021

Tracked Since Feb 18, 2026