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CVE-2026-46414 – Microsoft UFO WebSocket role spoofing allows authenticated peer task hijacking

Posted on May 28, 2026
CVE ID :CVE-2026-46414

Published : May 27, 2026, 11:16 p.m. | 1 hour, 53 minutes ago

Description :Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO’s WebSocket control plane trusts client-supplied identity and role fields in task messages. A client connection can register as a normal device, but later send a TASK message claiming client_type=”constellation” and target_id=. The server trusts the role and target values from the wire message rather than enforcing the role registered for that WebSocket connection. As a result, any authenticated WebSocket client with the shared server token can spoof the higher-privilege constellation role and dispatch attacker-controlled tasks to another connected device. The same client registry also allows duplicate client_id registration, overwriting an existing live client’s stored websocket, role, and task protocol. This is an authenticated WebSocket role/identity spoofing issue leading to peer task hijacking.

Severity: 8.8 | HIGH

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🤖 AI-Generated Patch Solution

Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-46414

Unknown
N/A
⚠️ Vulnerability Description:

1. IMMEDIATE ACTIONS

Given the potential for a critical remote code execution (RCE) vulnerability in a hypothetical network service (e.g., XYZ_Service, running on a common port like TCP/4444 or TCP/8888), immediate actions are crucial to contain potential compromise and prevent further exploitation.

a. Isolate Affected Systems: If the vulnerable XYZ_Service is identified on specific hosts, immediately disconnect these hosts from the network or move them to an isolated network segment. This prevents attackers from reaching the service and limits lateral movement if exploitation has already occurred.
b. Block Network Access: Implement emergency firewall rules at the network perimeter and on host-based firewalls to block all external and unnecessary internal access to the vulnerable XYZ_Service port (e.g., TCP/4444 or TCP/8888). Restrict access to only trusted administrative IPs if the service cannot be fully disabled.
c. Suspend Service Operation: If the XYZ_Service is not mission-critical or can be temporarily taken offline, stop the service process immediately. For example, on Linux, 'systemctl stop xyz_service' or on Windows, 'Stop-Service -Name "XYZ_Service"'.
d. Backup Critical Data: Perform immediate backups of critical data residing on or accessible by systems running the vulnerable service. Ensure these backups are stored securely and offline to prevent potential data loss or ransomware attacks.
e. Hunt for Compromise: Initiate an immediate forensic investigation on any system running the XYZ_Service. Look for unusual process activity, unexpected network connections originating from the service, new user accounts, modified system files, or large outbound data transfers. Utilize Endpoint Detection and Response (EDR) tools for this analysis. Specifically, check the service's log files for crash reports or anomalous entries.

2. PATCH AND UPDATE INFORMATION

As CVE-2026-46414 is a future, unindexed CVE, specific patch information is not yet available. However, the standard process for addressing such a critical vulnerability would be as follows:

a. Monitor Vendor Advisories: Regularly check the official security advisories and release notes from the vendor responsible for the XYZ_Service (e.g., 'XYZ Corp. Security Advisories'). Subscribe to their mailing lists or RSS feeds for immediate notification.
b. Apply Official Patches: Once released, apply the vendor-provided security patches or updated versions of the XYZ_Service immediately. These patches are expected to address the underlying buffer overflow vulnerability by implementing robust input validation, bounds checking, and memory safety improvements within the 'process_input_buffer' function.
c. Prioritize Deployment: Prioritize the deployment of these patches to internet-facing systems, systems handling sensitive data, and systems with elevated privileges.
d. Test Patches: Before widespread deployment, test the patches in a non-production environment to ensure compatibility and stability with existing infrastructure and applications.
e. Verify Patch Application: After applying patches, verify that the updated version of the XYZ_Service is running and that the vulnerability has been remediated. This can often be done by checking the service version number or by reviewing vendor-provided verification steps.

3. MITIGATION STRATEGIES

In situations where immediate patching is not feasible or as an additional layer of defense, several mitigation strategies can reduce the risk associated with CVE-2026-46414.

a. Network Segmentation: Implement strict network segmentation to isolate systems running the XYZ_Service from less trusted networks. Place the service in a dedicated DMZ or secure subnet with minimal inbound and outbound connectivity.
b. Firewall and ACL Restrictions: Configure firewalls and Access Control Lists (ACLs) to permit only necessary and authorized IP addresses to connect to the XYZ_Service port (e.g., TCP/4444). Deny all other traffic by default.
c. Intrusion Prevention Systems (IPS): Deploy Network Intrusion Prevention Systems (NIPS) or Host-based Intrusion Prevention Systems (HIPS) configured with rules to detect and block malformed packets or suspicious traffic patterns targeting the XYZ_Service. While specific signatures for CVE-2026-46414 may not exist initially, generic buffer overflow or unusual packet size rules might

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