CVE-2019-1920 HIGH

CVE-2019-1920: Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability

Vendor Cisco
Product Cisco Aironet Access Point Software
Weakness CWE-20 · Input validation
Published July 17, 2019
Last update November 21, 2024
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected interface. The vulnerability is due to a lack of complete error handling condition for client authentication requests sent to a targeted interface configured for FT. An attacker could exploit this vulnerability by sending crafted authentication request traffic to the targeted interface, causing the device to restart unexpectedly.

Key dates

02Disclosure timeline

July 17, 2019 CVE published
November 21, 2024 Record updated