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Critical severity9.4NVD Advisory· Published May 13, 2021· Updated Jun 17, 2026

CVE-2021-20999

CVE-2021-20999

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

14
  • Weidmueller/Iot Gw30 4g Eu Firmware3 versions
    cpe:2.3:o:weidmueller:iot-gw30-4g-eu_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:weidmueller:iot-gw30-4g-eu_firmware:*:*:*:*:*:*:*:*range: >=1.3.0,<1.9.1
    • cpe:2.3:o:weidmueller:iot-gw30-4g-eu_firmware:1.11.0:*:*:*:*:*:*:*
    • cpe:2.3:o:weidmueller:iot-gw30-4g-eu_firmware:1.12.1:*:*:*:*:*:*:*
  • Weidmueller/Iot Gw30 Firmware3 versions
    cpe:2.3:o:weidmueller:iot-gw30_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:weidmueller:iot-gw30_firmware:*:*:*:*:*:*:*:*range: >=1.3.0,<1.9.1
    • cpe:2.3:o:weidmueller:iot-gw30_firmware:1.11.0:*:*:*:*:*:*:*
    • cpe:2.3:o:weidmueller:iot-gw30_firmware:1.12.1:*:*:*:*:*:*:*
  • Weidmueller/Uc20 Wl2000 Ac Firmware3 versions
    cpe:2.3:o:weidmueller:uc20-wl2000-ac_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:weidmueller:uc20-wl2000-ac_firmware:*:*:*:*:*:*:*:*range: >=1.3.0,<1.9.1
    • cpe:2.3:o:weidmueller:uc20-wl2000-ac_firmware:1.11.0:*:*:*:*:*:*:*
    • cpe:2.3:o:weidmueller:uc20-wl2000-ac_firmware:1.12.1:*:*:*:*:*:*:*
  • Weidmueller/Uc20 Wl2000 Iot Firmware3 versions
    cpe:2.3:o:weidmueller:uc20-wl2000-iot_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:weidmueller:uc20-wl2000-iot_firmware:*:*:*:*:*:*:*:*range: >=1.3.0,<1.9.1
    • cpe:2.3:o:weidmueller:uc20-wl2000-iot_firmware:1.11.0:*:*:*:*:*:*:*
    • cpe:2.3:o:weidmueller:uc20-wl2000-iot_firmware:1.12.1:*:*:*:*:*:*:*
  • Weidmueller/u-controls and IoT-Gatewaysllm-create
    Range: <=1.12.1
  • Weidmueller/Uc20 Wl2000 IoT (no. 1334990000)v5
    Range: 1.3.0

Patches

Vulnerability mechanics

References

1

News mentions

0

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