CVE-2021-32994

Softing OPC-UA C++ SDK Improper Restriction of Operations within the Bounds of a Memory Buffer

Published Apr 4, 2022 CVSS 3.1 · 7.5 High EPSS 1.7% KEV · Not listed
Description
Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.

Remediation

Vendor Solution

Softing has released version 5.65 to address this vulnerability and has notified known users of the release. As this vulnerability only affects the publisher and subscriber protocol, Softing highly recommends customers using this protocol to upgrade to the latest version or disable the functionality. Please download the latest software package from the Softing website.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-19715 Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Apr 16, 2025, 4:31 PM
Reserved
May 13, 2021, 12:00 AM
Status
Modified
Published
Apr 4, 2022, 8:15 PM
Modified
Jun 17, 2026, 3:53 AM