CVE-2019-1750

Cisco IOS XE Software Catalyst 4500 Cisco Discovery Protocol Denial of Service Vulnerability

HIGH
7.4
CVSS Score
Published: March 27, 2019 at 11:55 PM UTC
Updated: June 17, 2026 at 02:29 AM UTC
1 product affected across 1 vendorIOS Xe

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Severity
HIGH7.4
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

A vulnerability in the Easy Virtual Switching System (VSS) of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol (CDP) packets used with the Easy Virtual Switching System. An attacker could exploit this vulnerability by sending a specially crafted CDP packet. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.

Affected

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

16.9.2h3.10.0E3.10.0cE3.10.0ce3.10.0e3.10.1E3.10.1aE3.10.1ae3.10.1e3.10.1sE3.10.1se3.10.2E3.10.2e3.6.0E3.6.0aE3.6.0ae3.6.0bE3.6.0be3.6.0e3.6.10E3.6.10e3.6.1E3.6.1e3.6.2E3.6.2aE3.6.2ae3.6.2e3.6.3E3.6.3e3.6.4E3.6.4e3.6.5E3.6.5aE3.6.5ae3.6.5bE3.6.5be3.6.5e3.6.6E3.6.6e3.6.7E3.6.7aE3.6.7ae3.6.7bE3.6.7be3.6.7e3.6.8E3.6.8e3.6.9E3.6.9e3.7.0E3.7.0e3.7.1E3.7.1e3.7.2E3.7.2e3.7.3E3.7.3e3.8.0E3.8.0e3.8.1E3.8.1e3.8.2E3.8.2e3.8.3E3.8.3e3.8.4E3.8.4e3.8.5E3.8.5aE3.8.5ae3.8.5e3.8.6E3.8.6e3.8.7E3.8.7e3.9.0E3.9.0e3.9.1E3.9.1e3.9.2E3.9.2bE3.9.2be3.9.2e

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-20CWE-388

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