Unchecked Enum Cast Vulnerability in NI Grpc-Device
CVE-2026-48140

7.1HIGH

Key Information:

Vendor

Ni

Status
Grpc-device
Instrumentstudio
Vendor
CVE Published:
19 June 2026

What is CVE-2026-48140?

A vulnerability exists in the NI grpc-device that allows an attacker to exploit unchecked enum casting. This may lead to the triggering of invalid enum states and unpredictable behavior, including potential denial of service. The vulnerability requires the attacker to send a carefully crafted message containing an out-of-range value. This issue affects versions 2.17.0 and earlier of the grpc-device product.

Affected Version(s)

grpc-device 0 <= 2.17.0

InstrumentStudio 0 <= 26.3.0

References

https://www.ni.com/en/support/security/available-critical...
https://github.com/ni/grpc-device/security/advisories/GHS...

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sebastián Alba Vives (@Sebasteuo / 0xS4bb1)
.