# CVE-2026-37226: Null dereference in n/a

> A remote unauthenticated attacker can crash the FlexRIC iApp process by sending a subscription request with an invalid node ID, causing a null pointer dereference.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2026
- **Updated:** 2 Jun 2026
- **Also known as:** GHSA-7m2c-2c8h-4626

## What is CVE-2026-37226?

CVE-2026-37226 is a high-severity vulnerability in n/a, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

FlexRIC v2.0.0 crashes when the iApp receives an E42_RIC_SUBSCRIPTION_REQUEST referencing a non-existent E2 Node. The lookup function returns NULL, which is enforced by assert() in Debug builds (SIGABRT) and dereferenced in Release builds (SIGSEGV). A remote unauthenticated attacker can crash the iApp process (port 36422) by sending a subscription request with an arbitrary global_e2_node_id.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2026-37226?

It affects 1 product.


Products: Mosaic5g Flexric.

## How do I fix CVE-2026-37226?

No fix has been published for CVE-2026-37226 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-37226 being exploited?

There is no known exploitation of CVE-2026-37226 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-37234](https://insights.sbomify.com/CVE-2026-37234/): Denial of service in n/a (high 8.2)
- [CVE-2026-37228](https://insights.sbomify.com/CVE-2026-37228/): Denial of service in n/a (high 7.5)
- [CVE-2026-37229](https://insights.sbomify.com/CVE-2026-37229/): Denial of service in n/a (high 7.5)
- [CVE-2026-37230](https://insights.sbomify.com/CVE-2026-37230/): Null dereference in n/a (high 7.5)
- [CVE-2026-37231](https://insights.sbomify.com/CVE-2026-37231/): Integer overflow in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-37226 and fix it if it is affected.

What it is: CVE-2026-37226 is a high-severity vulnerability in n/a, published on 1 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-2026-37226 in the wild and no public exploit code.

Affected product: n/a. 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-2026-37226/ (Markdown: https://insights.sbomify.com/CVE-2026-37226/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-37226
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-37226
- OSV: https://osv.dev/vulnerability/CVE-2026-37226

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-37226/
Summaries are generated and may contain mistakes; the official description above is the record.