What’s Vulnerable › Vulnerabilities

CVE-2021-29240

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-05-04 · updated 2026-06-17

Description

The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before installation and may be used to install CODESYS packages with malicious content.

Affected products

• CODESYS Development System: from 3.0 before 3.5.17.0 — fixed in 3.5.17.0

How to fix

Upgrade to a fixed version: CODESYS Development System 3.5.17.0. Check the vendor advisory for mitigations.

References

• https://customers.codesys.com/index.php
• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14636&token=1ce7e6e4cbe4651989ede418450d7c82e972bdf2&download=
• https://www.codesys.com/security/security-reports.html
• https://customers.codesys.com/index.php
• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14636&token=1ce7e6e4cbe4651989ede418450d7c82e972bdf2&download=
• https://www.codesys.com/security/security-reports.html

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