CVE-2010-4671

HighCVSS 7.8/10Last modified Jun 16, 2026

Description

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS before 15.0(1)XA5 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, as demonstrated by the flood_router6 program in the thc-ipv6 package, aka Bug ID CSCti33534.

Metrics

CVSS 2.0 7.8/10AV:N/AC:L/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published: Jan 7, 2011
Last modified: Jun 16, 2026
NVD status: Modified

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