CVE-2021-32994 | BDVDB-2026-173121 Detail

SoftingOPC UA C++ SDK (Software Development Kit)

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References#

https://www.cisa.gov/uscert/ics/advisories/icsa-21-168-02

Exploit#

No public exploit known

History#

Version 12022-04-04Record published in the CVE List.
Version 22025-04-16Most recent update recorded in the CVE List.

Published

Published: 2022-04-04
Last modified: 2025-04-16

Vendor information

Vendor: Softing
Product: OPC UA C++ SDK (Software Development Kit)

All Softing vulnerabilities

Score

7.5 High

EPSS

1.6%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 77.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 5.59 and < 5.64
Fixed
5.64

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).