CVE-2021-40825

HIGH
8.6
CVSS Score
Published: September 17, 2021 at 04:54 PM UTC
Updated: June 17, 2026 at 04:07 AM UTC
2 products affected across 1 vendorNlight Eclypse System Controller FirmwareNlight Eclypse System Controller

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Severity
HIGH8.6
Exploit prediction
EPSS 1%

Description

nLight ECLYPSE (nECY) system Controllers running software prior to 1.17.21245.754 contain a default key vulnerability. The nECY does not force a change to the key upon the initial configuration of an affected device. nECY system controllers utilize an encrypted channel to secure SensorViewTM configuration and monitoring software and nECY to nECY communications. Impacted devices are at risk of exploitation. A remote attacker with IP access to an impacted device could submit lighting control commands to the nECY by leveraging the default key. A successful attack may result in the attacker gaining the ability to modify lighting conditions or gain the ability to update the software on lighting devices. The impacted key is referred to as the SensorView Password in the nECY nLight Explorer Interface and the Gateway Password in the SensorView application. An attacker cannot authenticate to or modify the configuration or software of the nECY system controller.

Affected

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

v < 1.17.21245.754
Affected range stops below 1.17.21245.754, so it looks safe — our inference, not a vendor statement
acuitybrands-nlight-eclypse-system-controller (same device)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1188

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