CVE-2019-1595

Cisco Nexus 5600 and 6000 Series Switches Fibre Channel over Ethernet Denial of Service Vulnerability

HIGH
7.4
CVSS Score
Published: March 6, 2019 at 10:00 PM UTC
Updated: June 17, 2026 at 02:28 AM UTC
3 products affected across 1 vendorNx OSNexus 6000Nexus 5600

Using Cisco NX-OS Software by Cisco?

Get instant alerts when new vulnerabilities affect Cisco NX-OS Software - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.4
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an incorrect allocation of an internal interface index. An adjacent attacker with the ability to submit a crafted FCoE packet that crosses affected interfaces could trigger this vulnerability. A successful exploit could allow the attacker to cause a packet loop and high throughput on the affected interfaces, resulting in a DoS condition. This vulnerability has been fixed in version 7.3(5)N1(1).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.3(5)n1(1)7.3(5)N1(1)
Affected range stops below 7.3(5)n1(1), so it looks safe — our inference, not a vendor statement
cisco-nexus-5600 (environment) · cisco-nexus-6000 (environment)
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHcisco
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-913

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card