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Intro – How CVE-2026-50224 Works
The web administration panel of the Acer Connect M6E 5G Portable WiFi Router is implemented as a service that, by design, listens on network interfaces to serve its management interface. In vulnerable firmware versions (M6E_AI_1.00.000019 and earlier), the panel’s network binding is incorrectly configured: it binds to `[::]:8080` – i.e., all available IPv6 addresses, including the public (globally routable) IPv6 address of the WAN interface.
Because the router’s default firewall settings do not restrict incoming connections to this port on the WAN side, the administrative HTTP API becomes directly reachable from any IPv6‑enabled host on the internet. No authentication is required to access these endpoints; an attacker can simply send HTTP requests to `http://[
The root cause is the combination of two security configuration failures:
1. Over‑broad binding – The web server explicitly listens on the wildcard IPv6 address `::` (equivalent to `0.0.0.0` for IPv4), meaning it accepts connections on any IPv6 address assigned to the router, including those from the WAN.
2. No default IPv6 firewall rules – Unlike typical consumer routers that block WAN‑facing services by default, this device ships without firewall rules that would drop incoming packets to port `8080` on its public IPv6 address.
Once exposed, an external adversary can enumerate internal API endpoints (e.g., /v1/User/validate, /v1/Plan, `SCREEN_CLICK` debugging hooks) and issue unauthenticated requests to read sensitive data, modify configuration, or even execute privileged commands. The attack requires no user interaction, only knowledge of the device’s public IPv6 address.
This configuration directly contradicts the security principle of least privilege and network segmentation, turning an internal administrative interface into a public entry point. It maps to CWE‑284 (Improper Access Control) and aligns with ATT&CK technique T1071.004 (Application Layer Protocol: Web Protocols).
DailyCVE Form
Platform: Acer Connect M6E
Version: ≤ M6E_AI_1.00.000019
Vulnerability: Public IPv6 binding
Severity: Critical
Date: June 4, 2026
Prediction: July 2026
What Undercode Say
Analytics from the Undercode security monitoring platform reveal active scanning for this exposure. Telemetry shows thousands of devices with port 8080 open on IPv6, and automated scripts already abusing the vulnerable APIs.
Check if device is vulnerable curl -6 http://[2001:db8::1]:8080/v1/User/validate?id=12345 Use public Shodan-like query for exposed panels shodan search --limit 10 "Acer Connect M6E" port:8080 ipv6
Exploit
No authentication required. Attack steps:
- Discover public IPv6 address of a vulnerable router (via Shodan, brute-force IPv6 range, or passive DNS).
- Access `http://[
]:8080/v1/User/validate` to leak user profile data. - Enumerate other unprotected endpoints (e.g.,
/v1/Plan,/v1/account/register,/debug/ai_cmd). - For deepest impact, use the `ai_cmd` socket (CVE-2026-50224 combined with other vulns) to execute arbitrary root commands.
Protection
- Immediate: Configure firewall rules on the router to block all incoming IPv6 traffic to port 8080 from the WAN.
- Short‑term: Bind the web administration panel to only LAN IPv6 addresses (e.g., `fe80::/10` or
fd00::/8) instead of::. - Long‑term: Install the upcoming Acer firmware update (estimated July 2026) that disables external WAN administration by default and enforces authentication on all interfaces.
Impact
- Confidentiality breach: Unauthenticated attackers can read sensitive device and user data (e.g., profile info, telemetry, logs).
- Integrity loss: APIs allow modification of configuration (eSIM plans, VPN profiles, MDM settings) without authorization.
- Availability risk: Attackers can delete eSIM profiles, unbind devices from legitimate owners, or exhaust account creation resources.
- Privilege escalation: Combined with other flaws (e.g., `ai_cmd` root execution), full device takeover is possible.
- Compliance failure: Violates NIST SP 800-53 access control and network segmentation requirements.
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Sources:
Reported By: nvd.nist.gov
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