Vulnerability · Published Mar 25, 2022 · Assigned by icscert

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

High 7.8

In plain English

A high-severity improper input validation in Cscape EnvisionRV from Horner Automation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.7%top 46.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Horner Automation	Cscape EnvisionRV	unspecified – through v4.50.3.1

Weakness: CWE-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-02 x_refsource_CONFIRM