# CVE-2026-10828: Information disclosure in NPort W2150A-W4/W2250A-W4 Series

> An attacker can exploit a format string vulnerability in the web interface to leak memory contents and bypass ASLR protections.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jun 2026
- **Updated:** 16 Jun 2026
- **Also known as:** GHSA-pgjf-23qm-f427

## What is CVE-2026-10828?

CVE-2026-10828 is a medium-severity vulnerability in Moxa NPort W2150A-W4/W2250A-W4 Series, published on 16 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A format string vulnerability has been found in the "alias" parameter of the Serial Param configuration page in the NPort W2150A-W4/W2250A-W4 Series version 1.5 and prior. This vulnerability stems from insufficient input validation and improper handling of externally supplied format strings. An attacker could exploit this vulnerability by sending crafted input to the web service, causing unintended memory disclosure. Successful exploitation may allow an attacker to leak sensitive memory contents and determine critical memory addresses, potentially bypassing Address Space Layout Randomization (ASLR) protections.

Weakness: CWE-134 (Use of Externally-Controlled Format String)

## Which versions are affected by CVE-2026-10828?


## How do I fix CVE-2026-10828?

No fix has been published for CVE-2026-10828 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-10828 being exploited?

There is no known exploitation of CVE-2026-10828 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-10828 and fix it if it is affected.

What it is: CVE-2026-10828 is a medium-severity vulnerability in Moxa NPort W2150A-W4/W2250A-W4 Series, published on 16 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-10828 in the wild and no public exploit code.

Affected product: Moxa NPort W2150A-W4/W2250A-W4 Series. 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-2026-10828/ (Markdown: https://insights.sbomify.com/CVE-2026-10828/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-10828
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-10828
- OSV: https://osv.dev/vulnerability/CVE-2026-10828

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-10828/
Summaries are generated and may contain mistakes; the official description above is the record.