# CVE-2026-1803: Ziroom ZHOME A0101 Dropbear SSH Service default credentials

> Attackers can exploit default Dropbear SSH credentials on Ziroom ZHOME A0101 devices to gain remote access and potentially execute code.

- **Severity:** Critical 9.2 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:** 3 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-7hq7-f7fv-849c

## What is CVE-2026-1803?

CVE-2026-1803 is a critical vulnerability in Ziroom ZHOME A0101, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A weakness has been identified in Ziroom ZHOME A0101 1.0.1.0. Impacted is an unknown function of the component Dropbear SSH Service. This manipulation causes use of default credentials. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitability is considered difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-1392 (Use of Default Credentials)

## Which versions are affected by CVE-2026-1803?


## How do I fix CVE-2026-1803?

No fix has been published for CVE-2026-1803 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-1803 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1803 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1803 and fix it if it is affected.

What it is: CVE-2026-1803 is a critical vulnerability in Ziroom ZHOME A0101, published on 3 Feb 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-2026-1803 exists.

Affected product: Ziroom ZHOME A0101. 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-2026-1803/ (Markdown: https://insights.sbomify.com/CVE-2026-1803/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1803
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1803
- OSV: https://osv.dev/vulnerability/CVE-2026-1803

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-1803/
Summaries are generated and may contain mistakes; the official description above is the record.