# CVE-2026-37229: Denial of service in n/a

> Remote unauthenticated attackers can crash FlexRIC processes by sending malformed SCTP packets, causing a denial of service in the near-RT RIC environment.

- **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-gg3p-8qg4-465f

## What is CVE-2026-37229?

CVE-2026-37229 is a high-severity denial of service 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 contains a reachable assertion in e2ap_create_pdu() triggered when ASN.1 PER decoding fails. A remote unauthenticated attacker can send any non-PER byte sequence (e.g., a single 0x00 byte) over SCTP to the near-RT RIC (port 36421) or iApp (port 36422) to crash the process via SIGABRT. The assertion is reached before any protocol-level validation occurs. All three E2AP protocol versions (v1.01, v2.03, v3.01) are affected.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2026-37229?

It affects 1 product.


Products: Mosaic5g Flexric.

## How do I fix CVE-2026-37229?

No fix has been published for CVE-2026-37229 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-37229 being exploited?

There is no known exploitation of CVE-2026-37229 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-2026-37226](https://insights.sbomify.com/CVE-2026-37226/): Null dereference in n/a (high 7.5)
- [CVE-2026-37228](https://insights.sbomify.com/CVE-2026-37228/): 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-2026-37229 and fix it if it is affected.

What it is: CVE-2026-37229 is a high-severity denial of service 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-2026-37229 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-2026-37229/ (Markdown: https://insights.sbomify.com/CVE-2026-37229/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-37229
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-37229
- OSV: https://osv.dev/vulnerability/CVE-2026-37229

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-37229/
Summaries are generated and may contain mistakes; the official description above is the record.