CVE-2021-44462 HIGH

CVE-2021-44462: Horner Automation Cscape EnvisionRV Improper Input Validation

Vendor Horner Automation
Product Cscape EnvisionRV
Weakness CWE-20 · Input validation
Published March 25, 2022
Last update April 16, 2025

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

This vulnerability can be exploited by parsing maliciously crafted project files with Horner Automation Cscape EnvisionRV v4.50.3.1 and prior. The issues result from the lack of proper validation of user-supplied data, which can result in reads and writes past the end of allocated data structures. User interaction is required to exploit this vulnerability as an attacker must trick a valid user to open a malicious HMI project file.

Key dates

02Disclosure timeline

March 25, 2022 CVE published
April 16, 2025 Record updated