# CVE-2018-18986: Memory corruption in LCDS Laquis SCADA

> Attackers can execute code, read data, or crash the system by tricking users into opening a malicious report file in LCDS Laquis SCADA.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 Feb 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-c324-3376-98jf

## What is CVE-2018-18986?

CVE-2018-18986 is a high-severity memory corruption vulnerability in LCDS Laquis SCADA, published on 5 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

LCDS Laquis SCADA prior to version 4.1.0.4150 allows the opening of a specially crafted report format file that may cause an out of bounds read, which may cause a system crash, allow data exfiltration, or remote code execution.

Weakness: CWE-125 (Out-of-bounds Read), CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2018-18986?

It affects 1 product.


Products: Lcds Laquis Scada.

## How do I fix CVE-2018-18986?

No fix has been published for CVE-2018-18986 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-18986 being exploited?

There is no known exploitation of CVE-2018-18986 in the wild and no public exploit code.

## Other vulnerabilities in LCDS Laquis SCADA

- [CVE-2018-18996](https://insights.sbomify.com/CVE-2018-18996/): Missing authorization in LCDS Laquis SCADA (critical 9.8)
- [CVE-2018-18998](https://insights.sbomify.com/CVE-2018-18998/): Hardcoded credentials in LCDS Laquis SCADA (critical 9.8)
- [CVE-2018-17893](https://insights.sbomify.com/CVE-2018-17893/): Null dereference in LAquis SCADA (critical 9.8)
- [CVE-2018-17895](https://insights.sbomify.com/CVE-2018-17895/): Memory corruption in LAquis SCADA (critical 9.8)
- [CVE-2018-17897](https://insights.sbomify.com/CVE-2018-17897/): Integer overflow in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-18986 and fix it if it is affected.

What it is: CVE-2018-18986 is a high-severity memory corruption vulnerability in LCDS Laquis SCADA, published on 5 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-18986 in the wild and no public exploit code.

Affected product: LCDS Laquis SCADA. 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-2018-18986/ (Markdown: https://insights.sbomify.com/CVE-2018-18986/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-18986
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-18986
- OSV: https://osv.dev/vulnerability/CVE-2018-18986

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-18986/
Summaries are generated and may contain mistakes; the official description above is the record.