CVE-2021-21869

Public Exploit

Description

An unsafe deserialization vulnerability exists in the Engine.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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory codesys.com Third-Party Advisory talosintelligence.com
Affected: n/a CODESYS
Published at:
Updated at:

References

Link Tags
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download= patch mitigation third party advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1306 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-21869?
CVE-2021-21869 has been scored as a high severity vulnerability.
How to fix CVE-2021-21869?
To fix CVE-2021-21869, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21869 being actively exploited in the wild?
It is possible that CVE-2021-21869 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21869?
CVE-2021-21869 affects n/a CODESYS.
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