cve.bz

CVE-2021-21865

7.8 highEPSS 1.4%

High (7.8) in codesys development system. EPSS 1.4% chance of exploitation in the next 30 days.

A unsafe deserialization vulnerability exists in the PackageManagement.plugin ExtensionMethods.Clone() functionality of CODESYS GmbH CODESYS Development System 3.5.16. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE
CWE-502
Published
Modified
Record from
the NVD, synced

Affected

References

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