CVE-2021-45117
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This...
CVE-2021-45117 is a medium vulnerability (CVSS 6.5) in Opcfoundation Ua-nodeset, published March 21, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.42%, the 73rd percentile. No source names a fixed version.
- Severity
- 6.5 MediumCVSS 3.1, NVD
- Exploit chance
- 1.42%EPSS, 73rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
What each source reports
NVD Score used
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
- Record
CVE-2021-45117- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE ListNo score
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
- Record
CVE-2021-45117- Updated
- 2026-11-02
EUVDEUVD-2021-31899No score
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
- Record
EUVD-2021-31899- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v4v7-f2qj-8939
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This...
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
- Record
GHSA-v4v7-f2qj-8939- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.