# CVE-2018-5463: Memory corruption in LCDS - Leão Consultoria e Desenvolvimento de Sistemas LTDA ME LAquis SCADA

> A structured exception handler overflow in LAquis SCADA allows attackers to execute arbitrary code on the system.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Apr 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-39j7-x2r8-v4jm

## What is CVE-2018-5463?

CVE-2018-5463 is a high-severity memory corruption vulnerability in ICS-CERT LCDS - Leão Consultoria e Desenvolvimento de Sistemas LTDA ME LAquis SCADA, published on 9 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A structured exception handler overflow vulnerability in Leao Consultoria e Desenvolvimento de Sistemas (LCDS) LTDA ME LAquis SCADA 4.1.0.3391 and earlier may allow code execution.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-703 (Improper Check or Handling of Exceptional Conditions)

## Which versions are affected by CVE-2018-5463?

It affects 1 product.


Products: Lcds Laquis Scada.

## How do I fix CVE-2018-5463?

No fix has been published for CVE-2018-5463 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-5463 being exploited?

There is no known exploitation of CVE-2018-5463 in the wild and no public exploit code.

## Other vulnerabilities in ICS-CERT LCDS - Leão Consultoria e Desenvolvimento de Sistemas LTDA ME 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-2018-5463 and fix it if it is affected.

What it is: CVE-2018-5463 is a high-severity memory corruption vulnerability in ICS-CERT LCDS - Leão Consultoria e Desenvolvimento de Sistemas LTDA ME LAquis SCADA, published on 9 Apr 2018. 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-2018-5463 in the wild and no public exploit code.

Affected product: ICS-CERT LCDS - Leão Consultoria e Desenvolvimento de Sistemas LTDA ME 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-2018-5463/ (Markdown: https://insights.sbomify.com/CVE-2018-5463/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-5463
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-5463
- OSV: https://osv.dev/vulnerability/CVE-2018-5463

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-5463/
Summaries are generated and may contain mistakes; the official description above is the record.