CVE-2026-48140: CWE-704 Incorrect Type Conversion or Cast in NI grpc-device
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.
AI Analysis
Technical Summary
This vulnerability arises from an unchecked cast of an enum type in the NI grpc-device component's BeginSidebandStream function. By sending a message containing an out-of-range enum value, an attacker can trigger invalid enum states, resulting in undefined behavior and potentially causing a denial of service condition. The issue affects all versions prior to 2.17.1. There is no vendor advisory indicating an available fix or mitigation at this time.
Potential Impact
Successful exploitation can cause denial of service due to undefined behavior triggered by invalid enum states. There is no indication of confidentiality or integrity impact. The attack requires network access with low complexity and no user interaction, but does require some privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected service to trusted users and monitor for suspicious messages containing out-of-range enum values if possible.
CVE-2026-48140: CWE-704 Incorrect Type Conversion or Cast in NI grpc-device
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 v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from an unchecked cast of an enum type in the NI grpc-device component's BeginSidebandStream function. By sending a message containing an out-of-range enum value, an attacker can trigger invalid enum states, resulting in undefined behavior and potentially causing a denial of service condition. The issue affects all versions prior to 2.17.1. There is no vendor advisory indicating an available fix or mitigation at this time.
Potential Impact
Successful exploitation can cause denial of service due to undefined behavior triggered by invalid enum states. There is no indication of confidentiality or integrity impact. The attack requires network access with low complexity and no user interaction, but does require some privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected service to trusted users and monitor for suspicious messages containing out-of-range enum values if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NI
- Date Reserved
- 2026-05-20T19:51:56.936Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a354cc5f198dc38c15875b1
Added to database: 06/19/2026, 14:05:57 UTC
Last enriched: 06/26/2026, 15:16:04 UTC
Last updated: 08/03/2026, 07:17:57 UTC
Views: 70
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