# CVE-2019-10961: Memory corruption in Advantech WebAccess HMI Designer

> Remote attackers can execute arbitrary code by tricking users into opening malicious MCR files in Advantech WebAccess HMI Designer.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 2 Aug 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-v43m-3878-vr43

## What is CVE-2019-10961?

CVE-2019-10961 is a high-severity memory corruption vulnerability in Advantech WebAccess HMI Designer, published on 2 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

In Advantech WebAccess HMI Designer Version 2.1.9.23 and prior, processing specially crafted MCR files lacking proper validation of user supplied data may cause the system to write outside the intended buffer area, allowing remote code execution.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2019-10961?

It affects 1 product.


Products: Advantech Webaccess Hmi Designer.

## How do I fix CVE-2019-10961?

No fix has been published for CVE-2019-10961 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10961 being exploited?

There is no known exploitation of CVE-2019-10961 in the wild and no public exploit code.

## Other vulnerabilities in Advantech WebAccess HMI Designer

- [CVE-2021-42706](https://insights.sbomify.com/CVE-2021-42706/): AzeoTech DAQFactory (high 7.8)
- [CVE-2018-8833](https://insights.sbomify.com/CVE-2018-8833/): Memory corruption in Advantech WebAccess HMI Designer (high 7.8)
- [CVE-2018-8835](https://insights.sbomify.com/CVE-2018-8835/): Use after free in Advantech WebAccess HMI Designer (high 7.8)
- [CVE-2018-8837](https://insights.sbomify.com/CVE-2018-8837/): Memory corruption in Advantech WebAccess HMI Designer (high 7.8)
- [CVE-2021-42703](https://insights.sbomify.com/CVE-2021-42703/): AzeoTech DAQFactory (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10961 and fix it if it is affected.

What it is: CVE-2019-10961 is a high-severity memory corruption vulnerability in Advantech WebAccess HMI Designer, published on 2 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-10961 in the wild and no public exploit code.

Affected product: Advantech WebAccess HMI Designer. 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-2019-10961/ (Markdown: https://insights.sbomify.com/CVE-2019-10961/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10961
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10961
- OSV: https://osv.dev/vulnerability/CVE-2019-10961

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-10961/
Summaries are generated and may contain mistakes; the official description above is the record.