CVE-2021-21865
First published: Mon Aug 02 2021(Updated: )
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.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CODESYS Development System | =3.5.16.0 | |
| CODESYS Development System | =3.5.17.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-21865?
The severity of CVE-2021-21865 is high with a severity value of 7.8.
How does CVE-2021-21865 affect CODESYS Development System?
CVE-2021-21865 affects CODESYS Development System versions 3.5.16 and 3.5.17.
What is the vulnerability description of CVE-2021-21865?
The vulnerability is an unsafe deserialization vulnerability in the PackageManagement.plugin ExtensionMethods.Clone() functionality of CODESYS Development System 3.5.16.
How can CVE-2021-21865 be exploited?
CVE-2021-21865 can be exploited by providing a malicious file that triggers arbitrary command execution.
Are there any references for CVE-2021-21865?
Yes, you can find more information about CVE-2021-21865 at the following references: [1] [2]
- collector/nvd-index
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/description
- agent/remedy
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- vendor/codesys
- canonical/codesys development system
- version/codesys development system/3.5.16.0
- version/codesys development system/3.5.17.0