# CVE-2026-2981: UTT HiPER 810G formTaskEdit_ap strcpy buffer overflow

> Remote attackers can trigger a buffer overflow in the UTT HiPER 810G router via the formTaskEdit_ap interface, 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:** 23 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-9vfc-93vc-6ffp

## What is CVE-2026-2981?

CVE-2026-2981 is a high-severity memory corruption vulnerability in UTT HiPER 810G, published on 23 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in UTT HiPER 810G up to 1.7.7-1711. The affected element is the function strcpy of the file /goform/formTaskEdit_ap. The manipulation of the argument txtMin2 results in buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.

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-2026-2981?

It affects 1 product.


Products: Utt 810g Firmware.

## How do I fix CVE-2026-2981?

No fix has been published for CVE-2026-2981 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2981 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2981 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-2026-2981 and fix it if it is affected.

What it is: CVE-2026-2981 is a high-severity memory corruption vulnerability in UTT HiPER 810G, published on 23 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-2026-2981 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-2026-2981/ (Markdown: https://insights.sbomify.com/CVE-2026-2981/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2981
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2981
- OSV: https://osv.dev/vulnerability/CVE-2026-2981

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2981/
Summaries are generated and may contain mistakes; the official description above is the record.