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.
- 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.