CVE-2026-48140

MEDIUM 6.5

Unchecked enum cast vulnerability in NI grpc-device in BeginSidebandStream

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-704
Vendor	ni
Product	grpc-device
Published	Jun 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

NI / grpc-device

0 ≤ 2.17.0

NI / InstrumentStudio

0 ≤ 26.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

ni.com: https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/multiple-vulnerabilities-in-ni-grpc-device-server.html github.com: https://github.com/ni/grpc-device/security/advisories/GHSA-prfr-q8h3-mqxv

Credits

Sebastián Alba Vives (@Sebasteuo / 0xS4bb1)