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

2026-10-24T09:32:53.026928+00:00

Affected: Horner Automation Cscape EnvisionRV

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.

ICSA-21-355-02 — Horner Automation Cscape EnvisionRV

2026-10-24T09:32:53.026982+00:00

This vulnerability can be exploited by parsing maliciously crafted project files. 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.CVE-2021-44462 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).