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CVE-2021-21868

🗓️ 22 May 2025 18:19:22Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 21 Views

Unsafe deserialization in CODESYS Development System can lead to arbitrary command execution.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-21868
18 Aug 202115:15
–attackerkb
bdu_fstec
BDU FSTEC
PLK CODESYS Development System ObjectManager Plugin Command Execution
4 Jul 202300:00
–bdu_fstec
circl
Circl
CVE-2021-21868
18 Aug 202118:17
–circl
cnnvd
CNNVD
3s-smart Software Solutions CODESYS Development System Code Issues and Vulnerabilities
26 Jul 202100:00
–cnnvd
cve
CVE
CVE-2021-21868
18 Aug 202114:35
–cve
cvelist
Cvelist
CVE-2021-21868
18 Aug 202114:35
–cvelist
euvd
EUVD
EUVD-2021-9039
3 Oct 202520:07
–euvd
nvd
NVD
CVE-2021-21868
18 Aug 202115:15
–nvd
osv_cve
osv_cve
CVE-2021-21868
18 Aug 202115:15
–osv_cve
prion
Prion
Deserialization of untrusted data
18 Aug 202115:15
–prion
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Data

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27 Mar 2026 14:54Current
8High risk
Vulners AI Score8
CVSS 26.8
CVSS 3.17.8
CVSS 38.8
EPSS0.01731
21