# CVE-2026-31066: Memory corruption in n/a

> Attackers can cause a Denial of Service on UTT HiPER 810G devices via a buffer overflow in the formTaskEdit function.

- **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-2pm6-rcw9-992f

## What is CVE-2026-31066?

CVE-2026-31066 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 HiPER 810G v3v1.7.7-171114 was discovered to contain a buffer overflow in the selDateType parameter of the formTaskEdit 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-2026-31066?

It affects 1 product.


Products: Utt 810g Firmware.

## How do I fix CVE-2026-31066?

No fix has been published for CVE-2026-31066 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-31066 being exploited?

There is no known exploitation of CVE-2026-31066 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-3814](https://insights.sbomify.com/CVE-2026-3814/): UTT HiPER 810G getOneApConfTempEntry strcpy buffer overflow (high 8.7)
- [CVE-2026-3815](https://insights.sbomify.com/CVE-2026-3815/): UTT HiPER 810G formApMail strcpy buffer overflow (high 8.7)
- [CVE-2026-3698](https://insights.sbomify.com/CVE-2026-3698/): UTT HiPER 810G NTP strcpy buffer overflow (high 8.7)
- [CVE-2026-3699](https://insights.sbomify.com/CVE-2026-3699/): UTT HiPER 810G formRemoteControl strcpy buffer overflow (high 8.7)
- [CVE-2026-3700](https://insights.sbomify.com/CVE-2026-3700/): UTT HiPER 810G formConfigDnsFilterGlobal strcpy buffer overflow (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-31066 and fix it if it is affected.

What it is: CVE-2026-31066 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-2026-31066 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-2026-31066/ (Markdown: https://insights.sbomify.com/CVE-2026-31066/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-31066
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31066
- OSV: https://osv.dev/vulnerability/CVE-2026-31066

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-31066/
Summaries are generated and may contain mistakes; the official description above is the record.