CVE-2021-1523

CWE-7724 documents4 sources
Severity
8.6HIGH
EPSS
0.5%
top 32.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco Nx-os System Software IN ACI ModeCisco Nx-os
Timeline
PublishedAug 25
Latest updateMay 24

Description

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a s…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages2 packages

▶NVDcisco/nx-os13.2\(3n\), 14.2\(4i\)+1

🔴Vulnerability Details

2
GHSA
GHSA-f58x-5qwh-88r6: A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote att↗2022-05-24
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CVEList
Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability↗2021-08-25
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📋Vendor Advisories

1
Cisco
Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability↗2021-08-25
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CVE-2021-1523 (HIGH CVSS 8.6) | A vulnerability in Cisco Nexus 9000 | cvebase.io