VULNERABILITY INTELLIGENCE

CVE-2023-37551

CVSS score6.5 MEDIUM
EPSS probability0.50%
CISA KEVNot currently listed
Published2023-08-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Description

In multiple Codesys products in multiple versions, after successful authentication as a user, specially crafted network communication requests can utilize the CmpApp component to download files with any file extensions to the controller. In contrast to the regular file download via CmpFileTransfer, no filtering of certain file types is performed here. As a result, the integrity of the CODESYS control runtime system may be compromised by the files loaded onto the controller.

Weakness classification

  • CWE-552: Files or Directories Accessible to External Parties

Primary references