# CVE-2026-82693: Tenda AC1206 Web UI telnet TendaTelnet missing authentication

> Remote attackers can bypass authentication on the Tenda AC1206 Web UI telnet interface to gain unauthorized access and execute commands.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Aug 2026
- **Updated:** 31 Aug 2026
- **Also known as:** GHSA-9225-239x-2hx8

## What is CVE-2026-82693?

CVE-2026-82693 is a critical authentication bypass vulnerability in Tenda AC1206, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was determined in Tenda AC1206 15.03.06.23. This vulnerability affects the function TendaTelnet of the file /goform/telnet of the component Web UI. Executing a manipulation can lead to missing authentication. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-306 (Missing Authentication for Critical Functionality), CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-82693?


## How do I fix CVE-2026-82693?

No fix has been published for CVE-2026-82693 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-82693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82693 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-82693 and fix it if it is affected.

What it is: CVE-2026-82693 is a critical authentication bypass vulnerability in Tenda AC1206, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82693 exists.

Affected product: Tenda AC1206. 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-2026-82693/ (Markdown: https://insights.sbomify.com/CVE-2026-82693/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-82693
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-82693
- OSV: https://osv.dev/vulnerability/CVE-2026-82693

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-82693/
Summaries are generated and may contain mistakes; the official description above is the record.