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01 Record

CVE-2021-32994

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

HighPUBLISHEDCNA: icscert
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.69% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 76.9% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-04-04 19:45Z4 YR AGO
Last updated
2025-04-16 16:31Z1 YR AGO
Reserved
2021-05-13
Assigning CNA
icscert
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
Data version
5.1
Document digest
9d8ea013ced360c7096f4effa09a8b83c2f10575269b37070915d668d60e1915

05 Affected products

VendorProductVersionsPlatforms

06 References

07 Remediation

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.