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Vulnerability record · CVE-2026-48140 · published 19 June 2026

CVE-2026-48140: Ni instrumentstudio vulnerability

NNi · Instrumentstudio

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.

7.1 CVSS 4.0 High EPSS 0.45% · top 63.8% CWE-704 · CWE-704
7.1CVSS 4.0 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
25 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ni/grpc-device/security/advisories/GHSA-prfr-q8h3-mqxv Vendor Advisory
https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/multiple-vulnerabili Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2026-9142Ni instrumentstudio missing authentication for critical function vulnerabilityThere is an insecure default credentials vulnerability in NI grpc-device when TLS configuration is not present and the server is bound beyond loopbac…EPSS 0.43%9.3CVE-2026-48137Ni instrumentstudio vulnerabilityThere is an untrusted pointer dereference vulnerability in the NI grpc-device sideband streaming API that may allow an attacker to cause an arbitrary…EPSS 0.80%8.7CVE-2026-48138Ni instrumentstudio out-of-bounds read vulnerabilityThere 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…EPSS 0.49%8.7CVE-2026-48139Ni instrumentstudio null pointer dereference vulnerabilityThere is a NULL pointer dereference vulnerability in NI grpc-device in the data moniker service that may allow an attacker to cause a denial of servi…EPSS 0.49%6.3CVE-2026-9143Ni instrumentstudio vulnerabilityThere is an incorrect conversion between numeric types vulnerability in NI grpc-device due to missing range checks in CodeGen.  This may silently dis…EPSS 0.30%6.0CVE-2026-48141Ni instrumentstudio memory leak vulnerabilityThere is a memory leak in NI grpc-device BeginSidebandStream that may result in denial of service due to memory exhaustion.  This affects NI grpc-dev…EPSS 0.42%

Source: NIST National Vulnerability Database (record CVE-2026-48140), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.