CVE-2019-1891 HIGH

CVE-2019-1891: Cisco Small Business Series Switches HTTP Denial of Service Vulnerability

Vendor Cisco
Product Cisco Small Business 300 Series Managed Switches
Weakness CWE-20 · Input validation
Published July 6, 2019
Last update November 19, 2024

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of requests sent to the web interface. An attacker could exploit this vulnerability by sending a malicious request to the web interface of an affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.

Key dates

02Disclosure timeline

July 6, 2019 CVE published
November 19, 2024 Record updated