CVE-2021-33539

HIGH

Weidmueller Industrial WLAN - Auth Bypass

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References
Third Party Advisory x_refsource_confirm
https://cert.vde.com/en-us/advisories/vde-2021-026

Scores

CVSS v3 7.2
EPSS 0.0106
EPSS Percentile 60.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (8)
weidmueller/ie-wl-bl-ap-cl-eu_firmware < 1.16.18
weidmueller/ie-wl-bl-ap-cl-us_firmware < 1.16.18
weidmueller/ie-wl-vl-ap-br-cl-eu_firmware < 1.16.18
weidmueller/ie-wl-vl-ap-br-cl-us_firmware < 1.16.18
weidmueller/ie-wlt-bl-ap-cl-eu_firmware < 1.16.18
weidmueller/ie-wlt-bl-ap-cl-us_firmware < 1.16.18
weidmueller/ie-wlt-vl-ap-br-cl-eu_firmware < 1.16.18
weidmueller/ie-wlt-vl-ap-br-cl-us_firmware < 1.16.18
Published Jun 25, 2021
Tracked Since Feb 18, 2026