CVE-2026-4129— Improper Access Controls in NI SystemLink
Quick assessment
Affected
NI SystemLink
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
NI SystemLink 中存在一个不当的访问控制漏洞，可能导致具有有限权限的已认证用户访问本应受限的主机操作系统文件和目录。该漏洞影响 NI SystemLink 和 NI SystemLink Server 2026 Q3 及更早版本。
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I. Basic Information for CVE-2026-4129
Vulnerability Information
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Vulnerability Title
Improper Access Controls in NI SystemLink
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NI | SystemLink | 0 ~ 26.5.0 | - |
|
| NI | SystemLink Server | 0 ~ 26.5.0 | - |
|
II. Public POCs for CVE-2026-4129
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-4129 (1)
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V. Comments for CVE-2026-4129
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