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CVE-2026-48141— Memory leak in NI grpc-device BeginSidebandStream

Quick assessment

Affected
NI grpc-device
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NI grpc-device是美国NI公司的一个基于gRPC协议的服务器，它让用户能够通过网络远程调用NI硬件设备的驱动API，而不需要在本地安装NI的驱动软件或硬件。 NI grpc-device 2.17.0及之前版本存在资源管理错误漏洞，该漏洞源于BeginSidebandStream存在内存泄漏，可能导致内存耗尽拒绝服务。

CVSS 5.3 · Medium EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
NI grpc-device ≤ 2.17.0 affected
NI InstrumentStudio ≤ 26.3.0 affected
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I. Basic Information for CVE-2026-48141

Vulnerability Information
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Vulnerability Title
Memory leak in NI grpc-device BeginSidebandStream
Source: CVE Program / CVE List V5
Vulnerability Description
There is a memory leak in NI grpc-device BeginSidebandStream that may result in denial of service due to memory exhaustion.  This affects NI grpc-device 2.17.0 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
NI grpc-device 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NI grpc-device是美国NI公司的一个基于gRPC协议的服务器，它让用户能够通过网络远程调用NI硬件设备的驱动API，而不需要在本地安装NI的驱动软件或硬件。 NI grpc-device 2.17.0及之前版本存在资源管理错误漏洞，该漏洞源于BeginSidebandStream存在内存泄漏，可能导致内存耗尽拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NI grpc-device 0 ~ 2.17.0 -
NI InstrumentStudio 0 ~ 26.3.0 -

II. Public POCs for CVE-2026-48141

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III. Intelligence Information for CVE-2026-48141

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Vendor Advisories for CVE-2026-48141 (2)

Same Patch Batch · NI · 2026-06-19 · 7 CVEs total

CVE-2026-48137 9.1 CRITICAL Untrusted pointer dereference in NI grpc-device sideband streaming API
CVE-2026-9142 9.1 CRITICAL Insecure Default Credentials vulnerability in NI grpc-device when TLS configuration is not
CVE-2026-48138 7.5 HIGH Out-of-bounds read vulnerability in the NI grpc-device streaming API
CVE-2026-48139 7.5 HIGH NULL pointer dereference vulnerability in NI grpc-device data moniker service
CVE-2026-48140 6.5 MEDIUM Unchecked enum cast vulnerability in NI grpc-device in BeginSidebandStream
CVE-2026-9143 3.7 LOW Incorrect Conversion between Numeric Types in NI grpc-device due to missing range checks i

IV. Related Vulnerabilities

Same product: grpc-device
Same vendor: NI
Same weakness: CWE-401

V. Comments for CVE-2026-48141

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