CVE-2021-1231

CWE-284 — Improper Access ControlCWE-3467 documents6 sources
Severity
4.7MEDIUM
EPSS
0.1%
top 69.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco Nx-os System Software IN ACI ModeCisco Nx-os
Timeline
PublishedFeb 24
Latest updateMar 7

Description

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 exploi…

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LExploitability: 2.8 | Impact: 1.4

Affected Packages2 packages

▶NVDcisco/nx-os164 versions+163

🔴Vulnerability Details

2
GHSA
GHSA-hpqm-fqwv-8ffg: A vulnerability in the Link Layer Discovery Protocol (LLDP) for Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode cou↗2022-05-24
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CVEList
Cisco Nexus 9000 Series Fabric Switches ACI Mode Link Layer Discovery Protocol Port Denial of Service Vulnerability↗2021-02-24
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📋Vendor Advisories

2
Chrome
Stable Channel Update for Desktop: CVE-2023-1231↗2023-03-07
▶
Cisco
Cisco Nexus 9000 Series Fabric Switches ACI Mode Link Layer Discovery Protocol Port Denial of Service Vulnerability↗2021-02-24
▶

🕵️Threat Intelligence

2
Talos
Vulnerability Spotlight: Multiple vulnerabilities in Trend Micro Home Network Security Station↗2021-05-24
▶
Talos
Vulnerability Spotlight: Multiple vulnerabilities in Trend Micro Home Network Security Station↗2021-05-24
▶
CVE-2021-1231 (MEDIUM CVSS 4.7) | A vulnerability in the Link Layer D | cvebase.io