SystemLink: Cleartext Storage of Sensitive Information
CVE-2026-4130 is a high-severity cleartext storage of sensitive information vulnerability in SystemLink from NI, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 26.5.0 as the first without the flaw, so updating SystemLink to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.1% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update SystemLink to 26.5.0 or a later version.
- Update SystemLink Server to 26.5.0 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| NI | SystemLink | before 26.5.0 | 26.5.0 |
| NI | SystemLink Server | before 26.5.0 | 26.5.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. Scored by CNA (ni.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.4 | High | CNA (ni.com) |
| CVSS 3.1 | 7.1 | High | CNA (ni.com) |
Official description
There is a storage of sensitive information in cleartext vulnerability in NI SystemLink. This vulnerability may allow an attacker with local access to obtain sensitive information stored by the system in the clear. This vulnerability affects NI SystemLink and NI SystemLink Server versions prior to 2026 Q3.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Cleartext Storage of Sensitive Information
The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.
How developers prevent this class of flaw
- When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to encrypt the data at rest.
- In some systems/environments such as cloud, the use of double encryption (at both the software and hardware layer) might be required, and the developer might be solely responsible for both layers, instead of shared responsibility with the administrator of the broader system/environment.
More Cleartext Storage of Sensitive Information vulnerabilities (CWE-312)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in SystemLink
- 8.1 High severity
- 7.8 High severity
Recent Cleartext Storage of Sensitive Information vulnerabilities
- 7.1 High severity
- 7.2 High severity
- 7.5 High severity
- 9.1 Critical severity
- 9.1 Critical severity
- 8.8 High severity
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