CVE-2015-6393

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Summary

CVECVE-2015-6393
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-10-06 10:59:01 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionCisco NX-OS 4.1 through 7.3 and 11.0 through 11.2 on Nexus 2000, 3000, 3500, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote attackers to cause a denial of service (device crash) via malformed IPv4 DHCP packets to the DHCPv4 relay agent, aka Bug IDs CSCuq39250, CSCus21733, CSCus21739, CSCut76171, and CSCux67182.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-399 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary7.8AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Nexus 5010 - All All All
Hardware Cisco Nexus 5020 - All All All
Hardware Cisco Nexus 5548p - All All All
Hardware Cisco Nexus 5548up - All All All
Hardware Cisco Nexus 5596t - All All All
Hardware Cisco Nexus 5596up - All All All
Hardware Cisco Nexus 56128p - All All All
Hardware Cisco Nexus 5624q - All All All
Hardware Cisco Nexus 5648q - All All All
Hardware Cisco Nexus 5672up - All All All
Hardware Cisco Nexus 5672up-16g - All All All
Hardware Cisco Nexus 5696q - All All All
Operating System Cisco Nx-os 4.2\(1\)n1\(1\) All All All
Operating System Cisco Nx-os 4.2\(1\)n2\(1a\) All All All
Operating System Cisco Nx-os 4.2\(1\)n2\(1\) All All All
Operating System Cisco Nx-os 5.0\(2\)n1\(1\) All All All
Operating System Cisco Nx-os 5.0\(2\)n2\(1a\) All All All
Operating System Cisco Nx-os 5.0\(2\)n2\(1\) All All All
Operating System Cisco Nx-os 5.0\(3\)n1\(1c\) All All All
Operating System Cisco Nx-os 5.0\(3\)n2\(1\) All All All
Operating System Cisco Nx-os 5.0\(3\)n2\(2a\) All All All
Operating System Cisco Nx-os 5.0\(3\)n2\(2b\) All All All
Operating System Cisco Nx-os 5.0\(3\)n2\(2\) All All All
Operating System Cisco Nx-os 5.1\(3\)n1\(1a\) All All All
Operating System Cisco Nx-os 5.1\(3\)n1\(1\) All All All
Operating System Cisco Nx-os 5.1\(3\)n2\(1a\) All All All
Operating System Cisco Nx-os 5.1\(3\)n2\(1b\) All All All
Operating System Cisco Nx-os 5.1\(3\)n2\(1c\) All All All
Operating System Cisco Nx-os 5.1\(3\)n2\(1\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(1a\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(1b\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(1\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(2a\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(2\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(3\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(4\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(5\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(6\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(7\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(8a\) All All All
Operating System Cisco Nx-os 5.2\(1\)n1\(8\) All All All
Operating System Cisco Nx-os 6.0\(2\)n1\(2a\) All All All
Operating System Cisco Nx-os 6.0\(2\)n1\(2\) All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Cisco NX-OS DHCPv4 Relay Input Validation Flaw Lets Remote Users Cause the Target Service to Crash - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Multiple Cisco Nexus Devices CVE-2015-6393 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Cisco NX-OS Software Malformed DHCPv4 Packet Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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