CVE-2021-20999

CRITICAL

Weidmüller u-controls/IoT-Gateways <1.12.1 - DoS

Title source: llm
STIX 2.1

Description

In Weidmüller u-controls and IoT-Gateways in versions up to 1.12.1 a network port intended only for device-internal usage is accidentally accessible via external network interfaces. By exploiting this vulnerability the device may be manipulated or the operation may be stopped.

References (1)

Core 1
Core References
Third Party Advisory x_refsource_confirm
https://cert.vde.com/en-us/advisories/vde-2021-016

Scores

CVSS v3 9.4
EPSS 0.0095
EPSS Percentile 56.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Details

CWE
CWE-668
Status published
Products (12)
weidmueller/iot-gw30-4g-eu_firmware 1.11.0
weidmueller/iot-gw30-4g-eu_firmware 1.12.1
weidmueller/iot-gw30-4g-eu_firmware 1.3.0 - 1.9.1
weidmueller/iot-gw30_firmware 1.11.0
weidmueller/iot-gw30_firmware 1.12.1
weidmueller/iot-gw30_firmware 1.3.0 - 1.9.1
weidmueller/uc20-wl2000-ac_firmware 1.11.0
weidmueller/uc20-wl2000-ac_firmware 1.12.1
weidmueller/uc20-wl2000-ac_firmware 1.3.0 - 1.9.1
weidmueller/uc20-wl2000-iot_firmware 1.11.0
... and 2 more
Published May 13, 2021
Tracked Since Feb 18, 2026