CVE-2021-20999

high-risk
Published 2021-05-13

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.

Do I need to act?

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0.41% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.4/10 Critical
NETWORK / LOW complexity

Affected Products (12)

Uc20-Wl2000-Ac Firmware
Uc20-Wl2000-Ac Firmware
Uc20-Wl2000-Ac Firmware
Uc20-Wl2000-Iot Firmware
Uc20-Wl2000-Iot Firmware
Uc20-Wl2000-Iot Firmware
Iot-Gw30 Firmware
Iot-Gw30 Firmware
Iot-Gw30 Firmware
Iot-Gw30-4G-Eu Firmware
Iot-Gw30-4G-Eu Firmware
Iot-Gw30-4G-Eu Firmware

Affected Vendors

Weidmueller

References (2)

Third Party Advisory https://cert.vde.com/en-us/advisories/vde-2021-016
Third Party Advisory https://cert.vde.com/en-us/advisories/vde-2021-016
50
/ 100
high-risk
Severity 31/34 · Critical
Exploitability 2/34 · Minimal
Exposure 17/34 · Moderate