7.8
CVSSv2

CVE-2012-4623

Published: 27/09/2012 Updated: 29/08/2017
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
VMScore: 694
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

The DHCPv6 server in Cisco IOS 12.2 up to and including 12.4 and 15.0 up to and including 15.2 and IOS XE 2.1.x up to and including 2.6.x, 3.1.xS prior to 3.1.4S, 3.1.xSG and 3.2.xSG prior to 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG prior to 3.3.1SG allows remote malicious users to cause a denial of service (device reload) via a malformed DHCPv6 packet, aka Bug ID CSCto57723.

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cisco ios xe 3.2.3sg

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cisco ios xe 3.3.3s

Vendor Advisories

Cisco IOS Software and Cisco IOS XE Software contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition An attacker could exploit this vulnerability by sending a crafted request to an affected device that has the DHCP version 6 (DHCPv6) server feature enabled, causing a reload Cisco ...