# CVE-2026-2086: UTT HiPER 810G Management formFireWall strcpy buffer overflow

> Remote attackers can trigger a buffer overflow in the management interface via the GroupName parameter, potentially leading to code execution or service disruption.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-rp5p-5955-26x3

## What is CVE-2026-2086?

CVE-2026-2086 is a high-severity memory corruption vulnerability in UTT HiPER 810G, published on 7 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was detected in UTT HiPER 810G up to 1.7.7-171114. Affected by this vulnerability is the function strcpy of the file /goform/formFireWall of the component Management Interface. The manipulation of the argument GroupName results in buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2026-2086?

It affects 1 product.


Products: Utt 810g Firmware.

## How do I fix CVE-2026-2086?

No fix has been published for CVE-2026-2086 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2086 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2086 exists.

## Other vulnerabilities in UTT HiPER 810G

- [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-2026-2086 and fix it if it is affected.

What it is: CVE-2026-2086 is a high-severity memory corruption vulnerability in UTT HiPER 810G, published on 7 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2086 exists.

Affected product: UTT HiPER 810G. 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-2026-2086/ (Markdown: https://insights.sbomify.com/CVE-2026-2086/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2086
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2086
- OSV: https://osv.dev/vulnerability/CVE-2026-2086

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2086/
Summaries are generated and may contain mistakes; the official description above is the record.