CVE-2026-50227 PUBLISHED

MQTT WebSocket Command Execution Vulnerability in NitroSense

Assigner: Acer
Reserved: 04.06.2026 Published: 23.09.2026 Updated: 23.09.2026

An unauthenticated local attacker can connect to the MQTT broker over its localhost WebSocket endpoint in Acer NitroSense software (versions up to and including 5.2.62). This allows the attacker to invoke exposed ddsc RPC functions, including child_process.execSync(), resulting in arbitrary command execution in the application context.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
CVSS Score: 6.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Acer
Product	NitroSense V5
Versions	Default: unaffected affected from * to 5.2.62 (incl.)

Solutions

Update NitroSense to version 5.2.84 or later to fix.

Credits

Ayush Choudhary reporter

References

https://community.acer.com/en/kb/articles/20052

Problem Types

CWE-306 Missing Authentication for Critical Function CWE
CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') CWE

Impacts

CAPEC-115 Authentication Bypass
CAPEC-88 OS Command Injection