CVE-2026-48140: Ni Instrumentstudio

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

There is an unchecked enum cast vulnerability in NI grpc-device BeginSidebandStream that may allow an attacker to trigger invalid enum states and undefined behavior, potentially resulting in a denial of service. Successful exploitation requires an attacker to supply a specially crafted message containing an out-of-range value. This affects NI grpc-device 2.17.0 and prior versions.

Affected products

• Ni Instrumentstudio: up to and including 2025; version 2026 only
• Ni Ni Grpc Device Server: before 2.18.0 (fixed in 2.18.0)

Published 2026-06-19. Last modified 2026-06-25.