CVE-2018-0301
highpriority · attend · 45EPSS 0.167 · 97 %ileEUUSEPSS · scored 2026-10-27
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to craft a packet to the management interface on an affected system, causing a buffer overflow. The vulnerability is due to incorrect input validation in the authentication module of the NX-API subsystem. An attacker could exploit this vulnerability by sending a crafted HTTP or HTTPS packet to the management interface of an affected system with the NX-API feature enabled. An exploit could allow the attacker to execute arbitrary code as root. Note: NX-API is disabled by default. This vulnerability affects: MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCvd45804, CSCve02322, CSCve02412.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixed6.1(2)I1(1)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed6.1(2)I3(3.78)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed6.1(2)I3(3b)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed7.0(2)I2(2c)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed7.0(3)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed7.3(1)D1(1B)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed7.3(1)N1(0.1)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed7.3(2)D1(1A)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-20180620-nxos-boCisco NX-OS Software NX-API Arbitrary Code Execution Vulnerability2018-06-20csaf · cisco_csafUS
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to craft a packet to the management interface on an affected system, causing a buffer overflow. The vulnerability is due to incorrect input validation in the authentication module of the NX-API subsystem. An attacker could exploit this vulnerability by sending a crafted HTTP or HTTPS packet to the management interface of an affected system with the NX-API feature enabled. An exploit could allow the attacker to execute arbitrary code as root. Note: NX-API is disabled by default. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-bo ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-bo"] This advisory is part of the June 2018 Cisco FXOS and NX-OS Software Security Advisory Collection, which includes 24 Cisco Security Advisories that describe 24 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: June 2018 Cisco FXOS and NX-OS Software Security Advisory Collection ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-67770"].
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- http://www.securitytracker.com/id/1041169cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-bocnnvd
- https://www.securityfocus.com/bid/104512cnnvd
- http://www.securityfocus.com/bid/104512enisa_euvd
- http://www.securitytracker.com/id/1041169enisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-boenisa_euvd
- http://www.securityfocus.com/bid/104512Third Party AdvisoryVDB Entrynvd
- http://www.securitytracker.com/id/1041169Third Party AdvisoryVDB Entrynvd
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