CVE-2026-48140: CWE-704 Incorrect Type Conversion or Cast in NI grpc-device
CVE-2026-48140 is a vulnerability in NI grpc-device versions prior to 2.17.1 involving an unchecked enum cast in the BeginSidebandStream function. An attacker can supply a specially crafted message with an out-of-range enum value, potentially causing invalid enum states and undefined behavior. This may lead to a denial of service condition. The vulnerability has a medium severity rating with a CVSS score of 6.5 and does not impact confidentiality or integrity, only availability.
AI Analysis
Technical Summary
The vulnerability CVE-2026-48140 in NI grpc-device (versions <2.17.1) is due to an unchecked cast of an enum value in the BeginSidebandStream function. This allows an attacker to provide an out-of-range enum value, triggering invalid enum states and undefined behavior in the application. The primary impact is a denial of service caused by this improper type conversion. The vulnerability requires network access with low complexity and no user interaction, and it does not affect confidentiality or integrity.
Potential Impact
Successful exploitation can cause denial of service by triggering invalid enum states and undefined behavior in the NI grpc-device service. There is no impact on confidentiality or integrity according to the CVSS vector. The attack requires network access with low privileges and no user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Until a patch is available, restrict network access to the affected service to trusted users and monitor for unusual behavior related to the BeginSidebandStream function.
CVE-2026-48140: CWE-704 Incorrect Type Conversion or Cast in NI grpc-device
Description
CVE-2026-48140 is a vulnerability in NI grpc-device versions prior to 2.17.1 involving an unchecked enum cast in the BeginSidebandStream function. An attacker can supply a specially crafted message with an out-of-range enum value, potentially causing invalid enum states and undefined behavior. This may lead to a denial of service condition. The vulnerability has a medium severity rating with a CVSS score of 6.5 and does not impact confidentiality or integrity, only availability.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-48140 in NI grpc-device (versions <2.17.1) is due to an unchecked cast of an enum value in the BeginSidebandStream function. This allows an attacker to provide an out-of-range enum value, triggering invalid enum states and undefined behavior in the application. The primary impact is a denial of service caused by this improper type conversion. The vulnerability requires network access with low complexity and no user interaction, and it does not affect confidentiality or integrity.
Potential Impact
Successful exploitation can cause denial of service by triggering invalid enum states and undefined behavior in the NI grpc-device service. There is no impact on confidentiality or integrity according to the CVSS vector. The attack requires network access with low privileges and no user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround is currently documented. Until a patch is available, restrict network access to the affected service to trusted users and monitor for unusual behavior related to the BeginSidebandStream function.
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: 6/19/2026, 2:05:57 PM
Last enriched: 6/19/2026, 2:21:15 PM
Last updated: 6/19/2026, 3:47:59 PM
Views: 2
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