# CVE-2026-24347: Arbitrary file write to /tmp directory in EZCast Pro II Dongle

> Attackers can manipulate files in the /tmp directory via improper input validation in the Admin UI of the EZCast Pro II Dongle.

- **Severity:** Medium 5.7 (`CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Jan 2026
- **Updated:** 27 Jan 2026
- **Also known as:** GHSA-45hq-rq49-xwcf

## What is CVE-2026-24347?

CVE-2026-24347 is a medium-severity path traversal vulnerability in EZCast Pro II, published on 27 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper input validation in Admin UI of EZCast Pro II version 1.17478.146 allows attackers to manipulate files in the /tmp directory

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-24347?

It affects 1 product.


Products: Nimbletech Ezcast Pro Dongle Ii Firmware.

## How do I fix CVE-2026-24347?

No fix has been published for CVE-2026-24347 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-24347 being exploited?

There is no known exploitation of CVE-2026-24347 in the wild and no public exploit code.

## Other vulnerabilities in EZCast Pro II

- [CVE-2026-24346](https://insights.sbomify.com/CVE-2026-24346/): Use of well-known default credentials in EZCast Pro II Dongle (high 7.6)
- [CVE-2026-24348](https://insights.sbomify.com/CVE-2026-24348/): Multiple cross-site scripting vulnerabilities in EZCast Pro II Dongle (high 7.4)
- [CVE-2026-24345](https://insights.sbomify.com/CVE-2026-24345/): Cross-Site Request Forgery in EZCast Pro II Dongle (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-24347 and fix it if it is affected.

What it is: CVE-2026-24347 is a medium-severity path traversal vulnerability in EZCast Pro II, published on 27 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-2026-24347 in the wild and no public exploit code.

Affected product: EZCast Pro II. 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-2026-24347/ (Markdown: https://insights.sbomify.com/CVE-2026-24347/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24347
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24347
- OSV: https://osv.dev/vulnerability/CVE-2026-24347

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-24347/
Summaries are generated and may contain mistakes; the official description above is the record.