← Vulnerability feed

Vulnerability record · CVE-2026-49198 · published 29 May 2026

CVE-2026-49198: Acer predator connect w6x firmware improper access control vulnerability

Acer · Predator Connect W6x Firmware

Improper access control in the MQTT broker allows wildcard topic subscriptions, exposing all MQTT traffic to unauthorized actors.

8.3 CVSS 4.0 High EPSS 0.35% · top 74.5% CWE-284 · Improper access control
8.3CVSS 4.0 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
21 Jul 2026Last modified by NVD

Description

Improper access control in the MQTT broker allows wildcard topic subscriptions, exposing all MQTT traffic to unauthorized actors.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://community.acer.com/en/kb/articles/19672 Vendor Advisory

Track CVE-2026-49198 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-49199Acer predator connect w6x firmware command injection vulnerabilityCrafted MQTT messages can trigger command injection, resulting in root-level code execution on the target device.EPSS 2.2%10.0CVE-2026-49197Acer predator connect w6x firmware improper authentication vulnerabilityWeb endpoints intended for the Acer Connect app improperly validate the HTTP Authorization header, failing to block requests when Base64 decoding fai…EPSS 0.53%8.7CVE-2026-49195Acer predator connect w6x firmware missing authentication for critical function vulnerabilityUnauthenticated Debug Service. The /sbin/mtk_dut binary is exposed on TCP port 9000 without authentication, allowing any LAN-based attacker to execut…EPSS 0.37%8.6CVE-2026-49196Acer predator connect w6x firmware command injection vulnerabilityThe Wi-Fi device blocking feature fails to sanitize MAC address input, allowing injection and execution of arbitrary shell commands.EPSS 0.66%7.8CVE-2026-81963Windows Update Stack link-following privilege escalationWindows Update Stack resolves links improperly before accessing files, a link-following flaw (CWE-59) compounded by improper access control (CWE-284)…KEVEPSS 0.39%analysed10.0CVE-2026-21962Oracle HTTP Server and WebLogic Proxy Plug-in improper access controlOracle HTTP Server and the WebLogic Server Proxy Plug-in (for Apache HTTP Server and IIS) contain an improper access control flaw (CWE-284) in suppor…KEVEPSS 71%analysed10.0CVE-2026-34908Ubiquiti UniFi OS improper access control allows unauthorized system changesUniFi OS devices contain an improper access control flaw (CWE-284) that lets a network-reachable actor make unauthorized changes to the system. The C…KEVEPSS 15%analysed10.0CVE-2026-48907JCE editor for Joomla allows unauthenticated profile creation and PHP uploadThe JCE editor extension for Joomla permits unauthenticated users to create new editor profiles, which leads to upload and execution of PHP code. Thi…KEVEPSS 16%analysed

Source: NIST National Vulnerability Database (record CVE-2026-49198), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.