High severity · published May 3, 2021
CVE-2021-29239
CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files embedded in libraries without first checking their validity
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files embedded in libraries without first checking their validity.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DS
Development System · Codesys
3.0 before 3.5.17.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-29239
Permissions Required
https://customers.codesys.com/index.php
Vendor Advisory
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14639&token=fa836f8bd4a2184aa9323a639ca9f2aaf1538412&download=
Vendor Advisory
https://www.codesys.com/security/security-reports.html
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