VULNERABILITY INTELLIGENCE

CVE-2021-21863

CVSS score7.8 HIGH
EPSS probability1.21%
CISA KEVNot currently listed
Published2021-08-05
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

A unsafe deserialization vulnerability exists in the ComponentModel Profile.FromFile() functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-502
  • nvd@nist.gov: CWE-502

Primary references