Missing Authentication for Critical Function in Acer Connect W6x Router - #VU133368
Published: June 4, 2026
Vulnerability identifier: #VU133368
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-306
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Acer
Affected software:
Acer Connect W6x Router
Acer Connect W6x Router
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the device.
The vulnerability exists due to missing authentication in the debugging interface /sbin/mtk_dut on TCP port 9000 when handling LAN-based connections. A remote attacker can connect to the exposed debug service to compromise the device.
The issue is reachable from the local network.
Remediation
Install security update from vendor's website.