CVE-2026-48140

Unchecked enum cast vulnerability in NI grpc-device in BeginSidebandStream

MEDIUM
6.5
CVSS Score
Published: June 19, 2026 at 01:32 PM UTC
Updated: June 27, 2026 at 11:41 AM UTC
2 products affected across 1 vendorInstrumentStudioNi Grpc Device Server

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2025v ≤ 26.3.02026 q12026 q2
v ≤ 2.17.0
Affected range stops below 2.18.0, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMNI
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-704

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