What is CVE-2021-21863?

CVE-2021-21863 is a high-severity vulnerability in Codesys Development_system, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2021-08-05.

How severe is CVE-2021-21863?

High severity. CVSS v3 base score is 7.8 out of 10.

Deserialization in Codesys Development_system

CVE-2021-21863

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 attacke…

Vulnerability class: Insecure Deserialization

EPSS: 0.012 (65.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Codesys Development_system — versions 3.5.16.0, 3.5.17.0
N/a Codesys — versions CODESYS GmbH CODESYS Development System 3.5.16 ,CODESYS GmbH CODESYS Development System 3.5.17

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

talos-cna@cisco.com (Patch, x_refsource_MISC, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21863?: CVE-2021-21863 is a high-severity vulnerability in Codesys Development_system, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2021-08-05.
How severe is CVE-2021-21863?: High severity. CVSS v3 base score is 7.8 out of 10.