Critical severity · published May 13, 2021
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…
9.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IF
Iot-gw30 Firmware · Weidmueller
1.3.0 before 1.9.1; 1.10.0 before 1.10.3; 1.11.0; 1.12.1 · source: NVD
IF
Iot-gw30-4g-eu Firmware · Weidmueller
1.3.0 before 1.9.1; 1.10.0 before 1.10.3; 1.11.0; 1.12.1 · source: NVD
UF
Uc20-wl2000-ac Firmware · Weidmueller
1.3.0 before 1.9.1; 1.10.0 before 1.10.3; 1.11.0; 1.12.1 · source: NVD
UF
Uc20-wl2000-iot Firmware · Weidmueller
1.3.0 before 1.9.1; 1.10.0 before 1.10.3; 1.11.0; 1.12.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20999
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20999
Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2021-016
More from Iot-gw30 Firmware
6.1
CVE-2022-3073
Quanos "SCHEMA ST4" example web templates in version Bootstrap 2019 v2/2021 v1/2022 v1/2022 SP1 v1 or below are prone to JavaScript injection allowing a remote attacker to hijack…