VULNERABILITY INTELLIGENCE

CVE-2019-1750

CVSS score7.4 HIGH

EPSS probability0.71%

CISA KEVNot currently listed

Published2019-03-28

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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.

Weakness classification

CWE-20: Improper Input Validation

Primary references

psirt@cisco.com — Third Party Advisory, VDB Entry
psirt@cisco.com — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory