CVE-2021-42563: Ni Service Locator

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

There is an Unquoted Service Path in NI Service Locator (nisvcloc.exe) in versions prior to 18.0 on Windows. This may allow an authorized local user to insert arbitrary code into the unquoted service path and escalate privileges.

Affected products

• Ni Ni Service Locator: before 18.0.0.49152 (fixed in 18.0.0.49152)

Published 2021-11-12. Last modified 2026-06-17.