CVE-2021-21866
HIGHCODESYS Development System 3.5.16-3.5.17 - Remote Code Execution via Unsafe Deserialization in ObjectManager.plugin
Title source: llmDescription
A unsafe deserialization vulnerability exists in the ObjectManager.plugin ProfileInformation.ProfileData 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.
References (3)
Core 3
Core References
Not Applicable, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1301
Mitigation, Patch, Vendor Advisory x_refsource_confirm
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download=
Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1303
Scores
CVSS v3
7.8
EPSS
0.0167
EPSS Percentile
73.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-502
Status
published
Products (2)
codesys/development_system
3.5.16.0
codesys/development_system
3.5.17.0
Published
Aug 02, 2021
Tracked Since
Feb 18, 2026