# CVE-2026-48137: Untrusted pointer dereference in NI grpc-device sideband streaming API

> An attacker can achieve remote code execution by sending a crafted protobuf message to the NI grpc-device sideband streaming API.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Jun 2026
- **Updated:** 22 Jun 2026
- **Also known as:** GHSA-ww59-ghm9-mm63

## What is CVE-2026-48137?

CVE-2026-48137 is a critical vulnerability in NI InstrumentStudio, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

There is an untrusted pointer dereference vulnerability in the NI grpc-device sideband streaming API that may allow an attacker to cause an arbitrary memory dereference, potentially resulting in remote code execution.  Successful exploitation requires an attacker  to supply a specially crafted Moniker protobuf message.  This affects NI grpc-device 2.17.0 and prior versions.

Weakness: CWE-822 (Untrusted Pointer Dereference)

## Which versions are affected by CVE-2026-48137?

It affects 2 products.


Products: Ni Instrumentstudio, Ni Ni Grpc Device Server.

## How do I fix CVE-2026-48137?

No fix has been published for CVE-2026-48137 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48137 being exploited?

There is no known exploitation of CVE-2026-48137 in the wild and no public exploit code.

## Other vulnerabilities in NI InstrumentStudio

- [CVE-2026-9142](https://insights.sbomify.com/CVE-2026-9142/): Insecure Default Credentials vulnerability in NI grpc-device when TLS configuration is not present (critical 9.3)
- [CVE-2026-48138](https://insights.sbomify.com/CVE-2026-48138/): Out-of-bounds read vulnerability in the NI grpc-device streaming API (high 8.7)
- [CVE-2026-48139](https://insights.sbomify.com/CVE-2026-48139/): NULL pointer dereference vulnerability in NI grpc-device data moniker service (high 8.7)
- [CVE-2026-48140](https://insights.sbomify.com/CVE-2026-48140/): Unchecked enum cast vulnerability in NI grpc-device in BeginSidebandStream (high 7.1)
- [CVE-2026-9143](https://insights.sbomify.com/CVE-2026-9143/): Incorrect Conversion between Numeric Types in NI grpc-device due to missing range checks in CodeGen (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48137 and fix it if it is affected.

What it is: CVE-2026-48137 is a critical vulnerability in NI InstrumentStudio, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-48137 in the wild and no public exploit code.

Affected product: NI InstrumentStudio. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-48137/ (Markdown: https://insights.sbomify.com/CVE-2026-48137/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48137
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48137
- OSV: https://osv.dev/vulnerability/CVE-2026-48137

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48137/
Summaries are generated and may contain mistakes; the official description above is the record.