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CVE-2021-43936

CriticalPublished

Distributed Data Systems WebHM

Published: Dec 6, 2021
Updated: Aug 4, 2024
Assigning CNA: icscert
Evidence observed: Dec 13, 2021

Primary CVSS

10.0/ 10Critical

nvd · CVSS 3.1

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

EPSS probability estimate

35.8%

Moderate · next 30 days

Percentile: 98.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The software allows the attacker to upload or transfer files of dangerous types to the WebHMI portal, that may be automatically processed within the product's environment or lead to arbitrary code execution.

Sources

CVE-2021-43936Exploit
CVE-2021-43936 is a critical vulnerability (CVSS3 10.0) leading to Remote Code Execution (RCE) in WebHMI Firmware.
WebHMI 4.0 - Remote Code Execution (RCE) (Authenticated)Exploit
Jeremiasz Pluta · php · Dec 13, 2021

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