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TI-2011-02091 Aliases CVE-2011-2393GHSA-27vf-8fw5-36p7

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD, NetBSD…

Priority LOW 38CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD, NetBSD, and possibly other BSD-based operating systems allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, a similar vulnerability to CVE-2010-4670.

Why it matters now

EPSS 0.01905 79th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*all versionsVulnerableFreeBSD
cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:*all versionsVulnerableNetBSD
  • cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·FreeBSD
  • cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·NetBSD

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2393
  2. 2026-10-03 Alias added: GHSA-27vf-8fw5-36p7

References

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences