CVE-2021-20107

MEDIUM
5.4
CVSS Score
Published: June 30, 2021 at 01:21 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
142 products affected across 1 vendorSolis 8152 FirmwareSolis Ress U FirmwareBasys Efx 800 Firmware

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.5%

Description

There exists an unauthenticated BLE Interface in Sloan SmartFaucets including Optima EAF, Optima ETF/EBF, BASYS EFX, and Flushometers including SOLIS. The vulnerability allows for unauthenticated kinetic effects and information disclosure on the faucets. It is possible to use the Bluetooth Low Energy (BLE) connectivity to read and write to many BLE characteristics on the device. Some of these control the flow of water, the sensitivity of the sensors, and information about maintenance.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
sloan-basys-efx-100 (same device)
All versions
sloan-basys-efx-150 (same device)
All versions
sloan-basys-efx-175 (same device)
All versions
sloan-basys-efx-177 (same device)
All versions
sloan-basys-efx-180 (same device)
All versions
sloan-basys-efx-200 (same device)
All versions
sloan-basys-efx-250 (same device)
All versions
sloan-basys-efx-275 (same device)
All versions
sloan-basys-efx-277 (same device)
All versions
sloan-basys-efx-280 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
https://www.tenable.com/security/research/tra-2021-26-0

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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