CVE-2026-48138

High

Description

There is an out-of-bounds read vulnerability in the NI grpc-device streaming API due to a missing bounds check that may result in a denial of service. Successful exploitation requires an attacker to supply a specially crafted write request. This affects NI grpc-device 2.17.0 and prior versions.

SeverityHigh

CVSS7.5

Exploit probability—

ProductNi Instrumentstudio

PublishedJun 19, 2026

First seenJun 19, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Update

ni ni_grpc_device_server2.18.0 or later

Vendor advisories

ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/multiple-vulnerabilities-in-ni-grpc-device-server.html
github.com/ni/grpc-device/security/advisories/GHSA-8rjh-429j-f6gw

Affected products

Product	Affected versions	Fixed in
ni instrumentstudio	v ≤ 2025, 2026	—
ni ni_grpc_device_server	v < 2.18.0	2.18.0

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