Home/CVE/The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before insta
CVE

CVE-2021-29240

The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before insta

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.

HIGH · CVSS 7.8 EPSS 0.0026
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

1
codesys development system>= 3.0 and < 3.5.17.0
⚠

Public Exploits & PoCs

1
poccustomers.codesys.com · index.php?eID=dumpFile&t=f&f=14636&token=1ce7e6e4cbe46519...customers.codesys.com
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 May 2021 · 12:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2026-icsa-26-076-01
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://customers.codesys.com/index.phpVendor Advisory
https://www.codesys.com/security/security-reports.htmlVendor Advisory
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