Vulnerability · Published Jun 19, 2026 · Assigned by NI
CVE-2026-48140Unchecked enum cast vulnerability in NI grpc-device in BeginSidebandStream
Medium 6.5
In plain English
A medium-severity security flaw in grpc-device from NI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NI | grpc-device | 0 – through 2.17.0 |
| NI | InstrumentStudio | 0 – through 26.3.0 |
Weakness: CWE-704 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H