CVE-2021-32994

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

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

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Third-Party Advisory cisa.gov
Affected: Softing OPC UA C++ SDK (Software Development Kit)
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-21-168-02 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-32994?
CVE-2021-32994 has been scored as a high severity vulnerability.
How to fix CVE-2021-32994?
To fix CVE-2021-32994: 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.
Is CVE-2021-32994 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-32994 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32994?
CVE-2021-32994 affects Softing OPC UA C++ SDK (Software Development Kit).
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