# CVE-2026-31065: Memory corruption in n/a

> Attackers can cause a Denial of Service on UTT Aggressive routers via a buffer overflow in the engineer configuration form.

- **Severity:** Medium 4.5 (`CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-pq4m-hq9c-2vrf

## What is CVE-2026-31065?

CVE-2026-31065 is a medium-severity memory corruption vulnerability in n/a, published on 6 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the addCommand parameter of the formConfigCliForEngineerOnly function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2026-31065?

It affects 1 product.


Products: Utt 520w Firmware.

## How do I fix CVE-2026-31065?

No fix has been published for CVE-2026-31065 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-31065 being exploited?

There is no known exploitation of CVE-2026-31065 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-31059](https://insights.sbomify.com/CVE-2026-31059/): Command injection in n/a (critical 9.8)
- [CVE-2026-2071](https://insights.sbomify.com/CVE-2026-2071/): UTT 进取 520W formP2PLimitConfig strcpy buffer overflow (high 8.7)
- [CVE-2026-2066](https://insights.sbomify.com/CVE-2026-2066/): UTT 进取 520W formIpGroupConfig strcpy buffer overflow (high 8.7)
- [CVE-2026-2067](https://insights.sbomify.com/CVE-2026-2067/): UTT 进取 520W formTimeGroupConfig strcpy buffer overflow (high 8.7)
- [CVE-2026-2068](https://insights.sbomify.com/CVE-2026-2068/): UTT 进取 520W formSyslogConf strcpy buffer overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-31065 and fix it if it is affected.

What it is: CVE-2026-31065 is a medium-severity memory corruption vulnerability in n/a, published on 6 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-31065 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-2026-31065/ (Markdown: https://insights.sbomify.com/CVE-2026-31065/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-31065
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31065
- OSV: https://osv.dev/vulnerability/CVE-2026-31065

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-31065/
Summaries are generated and may contain mistakes; the official description above is the record.