Out-of-Bounds Read Vulnerability in NI grpc-device Streaming API
CVE-2026-48138

8.7HIGH

Key Information:

Vendor

Ni

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

What is CVE-2026-48138?

An out-of-bounds read vulnerability exists within NI's grpc-device streaming API due to an absence of appropriate bounds checks. This flaw can potentially allow an attacker to craft a specific write request that may lead to denial of service. This issue impacts versions 2.17.0 and earlier of the NI grpc-device, exposing systems to potential disruptions and attacks.

Affected Version(s)

grpc-device 0 <= 2.17.0

InstrumentStudio 0 <= 26.3.0

References

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

CVSS V4

Score:
8.7
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)
.