What’s Vulnerable › Vulnerabilities

CVE-2026-48138: Out-of-bounds read vulnerability in the NI grpc-device streaming API

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-19 · updated 2026-06-25
• Weakness: CWE-125

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.

Affected products

• NI InstrumentStudio: through 2025; 2026-q1, 2026-q2
• Ni Grpc Device Server: before 2.18.0 — fixed in 2.18.0

How to fix

Upgrade to a fixed version: Ni Grpc Device Server 2.18.0. Check the vendor advisory for mitigations.

References

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

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