# CVE-2018-7507: Memory corruption in Delta Electronics WPLSoft

> A heap buffer overflow in Delta Electronics WPLSoft allows remote code execution or application crashes via a crafted file.

- **Severity:** High 8.8 (`CVSS:3.0/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:** 4 May 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-75v2-hjrw-rj6w

## What is CVE-2018-7507?

CVE-2018-7507 is a high-severity memory corruption vulnerability in ICS-CERT Delta Electronics WPLSoft, published on 4 May 2018. 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

WPLSoft in Delta Electronics versions 2.45.0 and prior utilizes a fixed length heap buffer where a value larger than the buffer can be read from a file into the buffer, causing the buffer to be overwritten, which may allow remote code execution or cause the application to crash.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2018-7507?

It affects 1 product.


Products: Deltaww Wplsoft.

## How do I fix CVE-2018-7507?

No fix has been published for CVE-2018-7507 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7507 being exploited?

There is no known exploitation of CVE-2018-7507 in the wild and no public exploit code.

## Other vulnerabilities in ICS-CERT Delta Electronics WPLSoft

- [CVE-2018-7494](https://insights.sbomify.com/CVE-2018-7494/): Memory corruption in Delta Electronics WPLSoft (high 8.8)
- [CVE-2018-7509](https://insights.sbomify.com/CVE-2018-7509/): Memory corruption in Delta Electronics WPLSoft (high 8.8)
- [CVE-2023-5130](https://insights.sbomify.com/CVE-2023-5130/): Delta Electronics WPLSoft Buffer-Overflow (high 8.2)
- [CVE-2023-5461](https://insights.sbomify.com/CVE-2023-5461/): Delta Electronics WPLSoft Modbus cleartext transmission (low 3.7)
- [CVE-2023-5460](https://insights.sbomify.com/CVE-2023-5460/): Delta Electronics WPLSoft Modbus Data Packet heap-based overflow (low 3.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7507 and fix it if it is affected.

What it is: CVE-2018-7507 is a high-severity memory corruption vulnerability in ICS-CERT Delta Electronics WPLSoft, published on 4 May 2018. 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-2018-7507 in the wild and no public exploit code.

Affected product: ICS-CERT Delta Electronics WPLSoft. 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-2018-7507/ (Markdown: https://insights.sbomify.com/CVE-2018-7507/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7507
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7507
- OSV: https://osv.dev/vulnerability/CVE-2018-7507

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-7507/
Summaries are generated and may contain mistakes; the official description above is the record.