CVE-2026-46416
MEDIUM EPSS 19.4%
Published May 27, 20261mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 3.1
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO creates one shared UFOWebSocketHandler instance and reuses it for multiple authenticated WebSocket connections. The handler stores per-connection protocol objects in mutable instance fields. Each new WebSocket connection overwrites those fields. Later, message handlers send responses through the shared fields instead of through protocol objects bound to the originating connection. As a result, the most recently connected authenticated client can receive protocol responses that belong to another authenticated client.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low
Threat Intelligence
EPSS Exploit Probability
19.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-284
CWE-488
References 1
- github.com https://github.com/microsoft/UFO/security/advisories/GHSA-cwwh-p9rv-4pj4
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.