CVE-2021-32994

7.5 highEPSS 1.7%

High (7.5) in softing opc ua c\+\+ software development kit. EPSS 1.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2022-04-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

softing:opc_ua_c\+\+_software_development_kit

References

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

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