A vulnerability in the Link Layer Discovery Protocol (LLDP) for Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, adjacent attacker to disable switching on a small form-factor pluggable (SFP) interface. This vulnerability is due to incomplete validation of the source of a received LLDP packet. An attacker could exploit this vulnerability by sending a crafted LLDP packet on an SFP interface to an affected device. A successful exploit could allow the attacker to disable switching on the SFP interface, which could disrupt network traffic.
Metrics
No CVSS v4.0
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
User Interaction None
No CVSS v3.0
Access Vector Adjacent Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
AV:A/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
Exploitation none
Automatable no
Technical Impact partial
Affected Vendors & Products
Vendors | Products |
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Cisco |
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Configuration 1 [-]
AND |
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No data.
References
History
Sat, 09 Nov 2024 00:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2021-02-24T19:30:36.992019Z
Updated: 2024-11-08T23:38:56.652Z
Reserved: 2020-11-13T00:00:00
Link: CVE-2021-1231
Vulnrichment
Updated: 2024-08-03T16:02:56.339Z
NVD
Status : Modified
Published: 2021-02-24T20:15:13.193
Modified: 2024-11-21T05:43:53.150
Link: CVE-2021-1231
Redhat
No data.