# CVE-2025-8980: Tenda G1 Firmware Update check_upload_file data authenticity

> Insufficient verification of data authenticity in the firmware update handler allows remote attackers to potentially execute arbitrary code.

- **Severity:** High 7.5 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Aug 2025
- **Updated:** 14 Aug 2025
- **Also known as:** GHSA-mq67-q3fx-f62h

## What is CVE-2025-8980?

CVE-2025-8980 is a high-severity vulnerability in Tenda G1, published on 14 Aug 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability has been found in Tenda G1 16.01.7.8(3660). Affected by this issue is the function check_upload_file of the component Firmware Update Handler. The manipulation leads to insufficient verification of data authenticity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2025-8980?

It affects 1 product.


Products: Tenda G1 Firmware.

## How do I fix CVE-2025-8980?

No fix has been published for CVE-2025-8980 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-8980 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8980 exists.

## Other vulnerabilities in Tenda G1

- [CVE-2021-27705](https://insights.sbomify.com/CVE-2021-27705/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-27706](https://insights.sbomify.com/CVE-2021-27706/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-27707](https://insights.sbomify.com/CVE-2021-27707/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-70802](https://insights.sbomify.com/CVE-2025-70802/): Hardcoded credentials in n/a (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-8980 and fix it if it is affected.

What it is: CVE-2025-8980 is a high-severity vulnerability in Tenda G1, published on 14 Aug 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8980 exists.

Affected product: Tenda G1. 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-2025-8980/ (Markdown: https://insights.sbomify.com/CVE-2025-8980/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-8980
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-8980
- OSV: https://osv.dev/vulnerability/CVE-2025-8980

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-8980/
Summaries are generated and may contain mistakes; the official description above is the record.