A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because the software improperly releases resources when it processes certain IPv6 packets that are destined to an affected device. An attacker could exploit this vulnerability by sending multiple crafted IPv6 packets to an affected device. A successful exploit could cause the network stack to run out of available buffers, impairing operations of control plane and management plane protocols and resulting in a DoS condition. Manual intervention would be required to restore normal operations on the affected device. For more information about the impact of this vulnerability, see the Details section of this advisory.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
Exploitation none
Automatable yes
Technical Impact partial
Affected Vendors & Products
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Cisco |
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Configuration 1 [-]
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Configuration 2 [-]
AND |
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Configuration 3 [-]
AND |
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Configuration 4 [-]
AND |
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Configuration 5 [-]
AND |
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Configuration 6 [-]
AND |
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No data.
References
History
Sat, 09 Nov 2024 00:15:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2021-02-24T19:30:55.602269Z
Updated: 2024-11-08T23:37:33.797Z
Reserved: 2020-11-13T00:00:00
Link: CVE-2021-1387
Vulnrichment
Updated: 2024-08-03T16:11:16.899Z
NVD
Status : Modified
Published: 2021-02-24T20:15:13.567
Modified: 2024-11-21T05:44:14.203
Link: CVE-2021-1387
Redhat
No data.