CVE-2019-1977 — Cisco Nexus 9000 Series Fabric Switches IN ACI vulnerability

CWE-3714 documents4 sources
Severity
7.5HIGHNVD
CNA6.8
EPSS
0.8%
top 25.91%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Nexus 9000 Series Fabric Switches IN ACICisco Nx-os
Timeline
PublishedAug 30
Latest updateMay 24

Description

A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an endpoint device in certain circumstances. The vulnerability is due to improper endpoint learning when packets are received on a specific port from outside the ACI fabric and destined to an endpoint located on a border leaf when Disable Remote Endpoint Lea…

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5cisco/cisco_nexus_9000_series_fabric_switches_in_aciunspecified — 12.2(4M)
▶NVDcisco/nx-os4 versions+3

🔴Vulnerability Details

2
GHSA
GHSA-3993-q22g-mw33: A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure (ACI) mode coul↗2022-05-24
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CVEList
Cisco Nexus 9000 Series Fabric Switches ACI Mode Border Leaf Endpoint Learning Vulnerability↗2019-08-29
▶

📋Vendor Advisories

1
Cisco
Cisco Nexus 9000 Series Fabric Switches ACI Mode Border Leaf Endpoint Learning Vulnerability↗2019-08-28
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CVE-2019-1977 — Cisco vulnerability | cvebase