CVE-2026-50224: IPv6 Information Disclosure Vulnerability

CVE-2026-50224 Overview

CVE-2026-50224 describes a configuration flaw where a web administration panel binds to the unrestricted IPv6 address [::]:8080 without enforcing default firewall restrictions. This binding behavior exposes internal API endpoints to the wider area network (WAN) rather than limiting access to trusted local interfaces. Attackers with network reach to the affected device can interact with administrative APIs that should remain internal. The issue is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.

Critical Impact
Internal management APIs become reachable over the public IPv6 WAN, enabling unauthorized actors with high-privilege credentials to access sensitive administrative functionality.

Affected Products

Acer device web administration interface (see Acer Community Knowledge Base)
Devices exposing management services on TCP port 8080
Deployments without restrictive default IPv6 firewall rules

Discovery Timeline

2026-06-04 - CVE-2026-50224 published to NVD
2026-06-04 - Last updated in NVD database

Technical Details for CVE-2026-50224

Vulnerability Analysis

The web administration panel listens on the wildcard IPv6 address [::]:8080. This binding accepts connections from any IPv6 source reachable to the device, including hosts on the public internet when the device holds a globally routable IPv6 address. Without a default firewall policy restricting inbound connections, internal API endpoints intended for LAN-side configuration are exposed across the WAN.

IPv6 deployments frequently lack the implicit NAT boundary that shields IPv4 services from external reach. As a result, services bound to [::] are directly addressable from arbitrary IPv6 peers. Combined with administrative endpoints that assume a trusted network context, the binding behavior collapses the network boundary that the application implicitly relies on.

Exploitation requires that an attacker possess credentials with high privileges, as reflected in the CVSS vector component PR:H. User interaction is not required, and the impact is limited to confidentiality of administrative data. See the Acer Community Knowledge Base for vendor-published context.

Root Cause

The service binds to all available IPv6 interfaces using the wildcard literal [::] rather than a loopback or LAN-restricted address. No host-based firewall rules constrain inbound access to 8080/tcp by default, leaving the application's network exposure dependent on environmental controls that may not exist.

Attack Vector

A remote attacker with valid high-privilege credentials connects to the device's globally routable IPv6 address on TCP port 8080. The attacker then issues HTTP requests to administrative API endpoints that the application assumed were only reachable from internal networks. Because the binding is not interface-restricted, the requests traverse the WAN and reach the management plane.

No verified public exploit code is available for this issue. Refer to the vendor knowledge base for protocol and endpoint specifics.

Detection Methods for CVE-2026-50224

Indicators of Compromise

Inbound IPv6 connections to TCP 8080 originating from addresses outside the management network.
HTTP requests to administrative API paths sourced from non-trusted IPv6 prefixes.
Authentication events on the management panel originating from globally routable IPv6 addresses.

Detection Strategies

Inventory all listening sockets bound to [::]:8080 using ss -tlnp6 or equivalent platform commands.
Correlate firewall and flow logs to identify external IPv6 sessions terminating on the management port.
Alert on successful authentications to the admin panel from address ranges outside approved administrator subnets.

Monitoring Recommendations

Enable IPv6 flow logging on perimeter devices and forward records to a centralized analytics platform.
Monitor for configuration changes that re-expose 8080/tcp on public-facing interfaces after remediation.
Track repeated authentication failures on 8080 as an early indicator of credential probing against the API.

How to Mitigate CVE-2026-50224

Immediate Actions Required

Block inbound TCP 8080 at the network perimeter for both IPv4 and IPv6 traffic.
Restrict access to the administration panel to dedicated management VLANs or VPN tunnels.
Rotate credentials for any account with administrative access to the affected device.

Patch Information

No vendor patch identifier is published in the NVD record. Consult the Acer Community Knowledge Base for current vendor guidance and firmware updates that may address the binding behavior.

Workarounds

Apply a host or upstream firewall rule denying inbound IPv6 connections to port 8080 except from trusted management prefixes.
Where supported, rebind the management service to a loopback or LAN-only interface instead of [::].
Disable global IPv6 reachability on the device's WAN interface if the management panel cannot be repositioned.

bash

# Example: restrict inbound IPv6 access to TCP 8080 using ip6tables
ip6tables -A INPUT -p tcp --dport 8080 -s fd00::/8 -j ACCEPT
ip6tables -A INPUT -p tcp --dport 8080 -j DROP