CVE-2021-45117

PoC —

CVSS 3.1

6.5 medium

EPSS

1%p71

Published

Mar 21, 2022 (Mar 21, 2022)

Modified

Jun 17, 2026

Description

The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

Vendors: opcfoundation siemens
Products: ua-nodeset, simatic net pc, sitop manager, telecontrol server basic
Weakness: CWE-476
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.4%)

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