VULNERABILITY INTELLIGENCE

CVE-2021-44462

CVSS score7.8 HIGH

EPSS probability0.71%

CISA KEVNot currently listed

Published2022-03-25

Last modified2026-06-17

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

Description

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.

Weakness classification

ics-cert@hq.dhs.gov: CWE-20
nvd@nist.gov: CWE-20

Primary references

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