Is CVE-2021-38438 actively exploited?

No active exploitation of CVE-2021-38438 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-38438 be exploited remotely?

No. CVE-2021-38438 requires local access to exploit.

What is the CVSS score of CVE-2021-38438?

CVE-2021-38438 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-38438

HIGH

CVE-2021-38438

CWE-416Published: October 18, 2021· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

A use after free vulnerability in FATEK Automation WinProladder versions 3.30 and prior may be exploited when a valid user opens a malformed project file, which may allow arbitrary code execution.

NVD Source

Technical Analysis

CVE-2021-38438 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.