Out-of-Bounds Read in NI grpc-device API

Detection Guidance

This vulnerability can be detected by monitoring for unusual or malformed write requests sent to the NI grpc-device streaming API, as the exploit requires a specially crafted write request to trigger the out-of-bounds read.

Since the attack vector is network-based and does not require privileges or user interaction, network traffic analysis tools can be used to inspect grpc-device API requests for anomalies.

Specific commands are not provided in the available resources, but general approaches include using packet capture tools like tcpdump or Wireshark to filter and analyze grpc-device traffic, or employing network intrusion detection systems (NIDS) with custom rules to detect malformed write requests targeting grpc-device.

Additionally, checking the version of the grpc-device package installed on your system can help identify if it is vulnerable. Upgrading to version 2.18.0 or later mitigates the risk.

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Executive Summary

CVE-2026-48138 is an out-of-bounds read vulnerability in the NI grpc-device streaming API caused by a missing bounds check.

This means the software reads data outside the intended buffer range, which can lead to unexpected behavior.

An attacker can exploit this by sending a specially crafted write request to the affected versions (prior to 2.18.0) of the grpc-device package.

Successful exploitation may result in a denial of service, making the system unavailable.

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Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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Impact Analysis

The primary impact of this vulnerability is a denial of service condition.

An attacker can cause the affected system to become unavailable by exploiting the out-of-bounds read flaw.

The attack can be performed remotely over the network without requiring any privileges or user interaction.

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Mitigation Strategies

To mitigate this vulnerability, users should upgrade the NI grpc-device package to version 2.18.0 or later.

This update addresses the out-of-bounds read issue caused by a missing bounds check in the streaming API, preventing potential denial of service attacks.

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