CVE-2021-29240
HIGHCVSS 7.8/10EPSS 0.94%
Last modified
CVE-2021-29240 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.94% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Codesys | Development System | >= 3.0, < 3.5.17.0 |
References
- https://customers.codesys.com/index.phpVendor Advisory
- https://www.codesys.com/security/security-reports.htmlVendor Advisory
- https://customers.codesys.com/index.phpVendor Advisory
- https://www.codesys.com/security/security-reports.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-29240?
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.
How severe is CVE-2021-29240?
CVE-2021-29240 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.
How do I fix CVE-2021-29240?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-29240?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST