There is an improper access control vulnerability in NI SystemLink that may allow an authenticated user with limited privileges to access host operating system files and directories that should be restricted. This vulnerability affects NI SystemLink and NI SystemLink Server 2026 Q3 and prior versions.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
NI SystemLink unaffected
Version Status Constraints
0 affected ≤ 26.5.0
NI SystemLink Server unaffected
Version Status Constraints
0 affected ≤ 26.5.0

No data.

No data.

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Project Subscriptions

Vendors Products
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Systemlink Subscribe
Systemlink Server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/improper-access-controls-in-ni-systemlink.html cve-icon cve-icon
History

Thu, 10 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 10 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
Description There is an improper access control vulnerability in NI SystemLink that may allow an authenticated user with limited privileges to access host operating system files and directories that should be restricted. This vulnerability affects NI SystemLink and NI SystemLink Server 2026 Q3 and prior versions.
Title Improper Access Controls in NI SystemLink
First Time appeared Ni
Ni systemlink
Ni systemlink Server
Weaknesses CWE-862
CPEs cpe:2.3:a:ni:systemlink:*:*:*:*:*:*:*:*
cpe:2.3:a:ni:systemlink_server:*:*:*:*:*:*:*:*
Vendors & Products Ni
Ni systemlink
Ni systemlink Server
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: NI

Published:

Updated: 2026-09-10T16:45:21.826Z

Reserved: 2026-03-13T14:11:47.565Z

Link: CVE-2026-4129

cve-icon Vulnrichment

Updated: 2026-09-10T16:45:13.823Z

cve-icon NVD

Status : Received

Published: 2026-09-10T16:17:14.080

Modified: 2026-09-10T17:17:04.597

Link: CVE-2026-4129

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T16:30:17Z

Weaknesses