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Status published
High
CVE-2021-21865
A unsafe deserialization vulnerability exists in the PackageManagement.plugin ExtensionMethods.Clone() functionality...
Vulnerability Description
A unsafe deserialization vulnerability exists in the PackageManagement.plugin ExtensionMethods.Clone() functionality of CODESYS GmbH CODESYS Development System 3.5.16. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Affected Software
CODESYS
Vulnerable Versions:
CODESYS GmbH CODESYS Development System 3.5.16
Timeline
Official Publish:
August 2nd, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H