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CVE-2021-20999

CRITICALCVSS 9.8/10EPSS 0.95%

Last modified

CVE-2021-20999 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
0.95%

56.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
WeidmuellerUc20-Wl2000-Ac Firmware>= 1.3.0, < 1.9.1
WeidmuellerUc20-Wl2000-Ac Firmware>= 1.10.0, < 1.10.3
WeidmuellerUc20-Wl2000-Ac Firmware1.11.0
WeidmuellerUc20-Wl2000-Ac Firmware1.12.1
WeidmuellerUc20-Wl2000-Iot Firmware>= 1.3.0, < 1.9.1
WeidmuellerUc20-Wl2000-Iot Firmware>= 1.10.0, < 1.10.3
WeidmuellerUc20-Wl2000-Iot Firmware1.11.0
WeidmuellerUc20-Wl2000-Iot Firmware1.12.1
WeidmuellerIot-Gw30 Firmware>= 1.3.0, < 1.9.1
WeidmuellerIot-Gw30 Firmware>= 1.10.0, < 1.10.3
WeidmuellerIot-Gw30 Firmware1.11.0
WeidmuellerIot-Gw30 Firmware1.12.1
WeidmuellerIot-Gw30-4g-Eu Firmware>= 1.3.0, < 1.9.1
WeidmuellerIot-Gw30-4g-Eu Firmware>= 1.10.0, < 1.10.3
WeidmuellerIot-Gw30-4g-Eu Firmware1.11.0
WeidmuellerIot-Gw30-4g-Eu Firmware1.12.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20999?
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.
How severe is CVE-2021-20999?
CVE-2021-20999 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20999?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20999?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST