Vulnerability · Published Jun 19, 2026 · Assigned by NI

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

Medium 5.3

In plain English

A medium-severity memory leak in grpc-device from NI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.4%top 63.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
NI	grpc-device	0 – through 2.17.0
NI	InstrumentStudio	0 – through 26.3.0

Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/multiple-vulnerabilities-in-ni-grpc-device-server.html vendor-advisory
https://github.com/ni/grpc-device/security/advisories/GHSA-j4qc-5v3f-rf87 vendor-advisory