# CVE-2026-22080: Insecure Transmission Vulnerability in Tenda Wireless Routers

> Attackers on the same network can intercept Base64-encoded credentials to gain unauthorized access to Tenda wireless routers.

- **Severity:** High 8.7 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jan 2026
- **Updated:** 9 Jan 2026
- **Also known as:** GHSA-vwwc-97q7-j4wg

## What is CVE-2026-22080?

CVE-2026-22080 is a high-severity vulnerability in Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router, published on 9 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the transmission of credentials encoded using reversible Base64 encoding through the web-based administrative interface. An attacker on the same network could exploit this vulnerability by intercepting network traffic and capturing the Base64-encoded credentials.

Successful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unauthorized access to the targeted device.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2026-22080?


## How do I fix CVE-2026-22080?

No fix has been published for CVE-2026-22080 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-22080 being exploited?

There is no known exploitation of CVE-2026-22080 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-22080 and fix it if it is affected.

What it is: CVE-2026-22080 is a high-severity vulnerability in Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router, published on 9 Jan 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-2026-22080 in the wild and no public exploit code.

Affected product: Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router. 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-2026-22080/ (Markdown: https://insights.sbomify.com/CVE-2026-22080/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-22080
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-22080
- OSV: https://osv.dev/vulnerability/CVE-2026-22080

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-22080/
Summaries are generated and may contain mistakes; the official description above is the record.