CVE-2021-33539 HIGH

CVE-2021-33539: WEIDMUELLER: WLAN devices affected by authentication bypass vulnerability

Vendor Weidmüller
Product IE-WL(T)-BL-AP-CL-XX
Weakness CWE-287 · Improper authentication
Published June 25, 2021
Last update September 16, 2024

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable authentication bypass vulnerability exists in the hostname processing. A specially configured device hostname can cause the device to interpret selected remote traffic as local traffic, resulting in a bypass of web authentication. An attacker can send authenticated SNMP requests to trigger this vulnerability.

Key dates

02Disclosure timeline

June 25, 2021 CVE published
September 16, 2024 Record updated