CVE-2026-4129

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 versions prior to 2026 Q3.

  • Published Sep 10, 2026
  • CVSS 8.6 high
  • 0.4% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-4129 at the National Vulnerability Database