VULNERABILITY INTELLIGENCE

CVE-2016-1409

CVSS score7.5 HIGH
EPSS probability3.90%
CISA KEVNot currently listed
Published2016-05-29
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in Cisco IOS XE 2.1 through 3.17S, IOS XR 2.0.0 through 5.3.2, and NX-OS allows remote attackers to cause a denial of service (packet-processing outage) via crafted ND messages, aka Bug ID CSCuz66542, as exploited in the wild in May 2016.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references