Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2012-4623

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
27/09/2012
Last modified:
11/04/2025

Description

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

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xe:2.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.1.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.2.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.2.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.2.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.3.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.3.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.3.1t:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.3.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.4.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools