Which versions of Acer Predator Connect W6x are affected by EUVD-2026-33261?

Acer Predator Connect W6x routers expose a critical unauthenticated remote code execution vulnerability accessible from the local network, allowing any connected device to compromise router…

How to fix or mitigate EUVD-2026-33261?

Within 24 hours: Identify all Acer Predator Connect W6x routers (affected firmware: W6x_GBL_2.00.000005 and earlier) and document their network placement and criticality. Within 7 days: Implement firewall rules blocking port 9000 access except from authorized administrative devices, and enable monitoring on affected routers. Within 30 days: Request security update timeline from Acer support and develop hardware replacement or upgrade plan, as no vendor patch is currently available.

Acer Predator Connect W6x EUVD-2026-33261

Q: What is the CVSS score of EUVD-2026-33261?

EUVD-2026-33261 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

| CVE-2026-49195 HIGH

Missing Authentication for Critical Function (CWE-306)

2026-05-29 Acer

GHSA-2vr8-wh6w-3q8m

Authentication Bypass Predator Connect W6X

8.7

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.7 HIGH

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

May 29, 2026 - 11:21 vuln.today

CVSS changed

May 29, 2026 - 09:22 NVD

8.7 (HIGH)

CVE Published

May 29, 2026 - 08:02 nvd

UNKNOWN (no severity yet)

DescriptionCVE.org

Unauthenticated Debug Service. The /sbin/mtk_dut binary is exposed on TCP port 9000 without authentication, allowing any LAN-based attacker to execute arbitrary UCC commands.

AnalysisAI

Unauthenticated command execution on Acer Predator Connect W6x routers exposes the /sbin/mtk_dut debug binary on TCP port 9000, allowing any device on the LAN to issue arbitrary UCC (Unified Configuration Command) instructions without credentials. The flaw affects Predator Connect W6x firmware W6x_GBL_2.00.000005 and earlier, and at the time of analysis there is no public exploit identified, though the trivial protocol (raw TCP, no auth) makes weaponization straightforward once discovered.

Technical ContextAI

The Acer Predator Connect W6x is a MediaTek-based Wi-Fi 6E mesh router; the mtk_dut binary is a MediaTek 'Device Under Test' diagnostic/manufacturing utility typically used during factory calibration and RF testing, which exposes a UCC command interpreter. CWE-306 (Missing Authentication for a Critical Function) captures the root cause: the diagnostic listener was left bound to the LAN interface on TCP/9000 in shipping firmware without any authentication layer, so any client that can reach port 9000 can drive the same command surface a manufacturing technician would use. CPE cpe:2.3:a:acer:predator_connect_w6x covers the affected hardware line.

RemediationAI

Apply the firmware release published by Acer in the advisory at https://community.acer.com/en/kb/articles/19672 - no specific fixed-version string was provided in the available intelligence, so this is best described as patch available per vendor advisory rather than a confirmed version. Until the device is updated, restrict who can reach the router's LAN interface on TCP/9000: place the router on an isolated management VLAN, disable or strongly segment guest Wi-Fi from the management subnet, and use client isolation on any SSID where untrusted devices connect (trade-off: client isolation breaks AirPlay, Chromecast, and printer discovery). Where supported, add a host-based firewall rule on the router to drop inbound traffic to port 9000 on the LAN bridge; verify with an nmap scan from a wired and wireless client that 9000/tcp is filtered. Do not expose the LAN interface to untrusted IoT devices until patched.