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User interacting with a computer related to the CVE-2026-56155 vulnerability.

CVE-2026-56155: AD FS privilege escalation vulnerability is already being exploited

CyberSecureFox Editorial Team

Microsoft has flagged the CVE-2026-56155 vulnerability in Active Directory Federation Services (AD FS) as actively …

Visual representation of CVE-2026-76504 affecting Cisco SD-WAN Manager.

Critical vulnerability in Cisco Catalyst SD-WAN Manager (CVE-2026-76504) is being exploited — patches available

CyberSecureFox Editorial Team

On 30 September 2026, Cisco published a security advisory about a critical vulnerability CVE-2026-76504 (CVSS …

Illustration of a robot agent in conflict with DNS filtering and server issues.

OpenAI AI agent bypassed sandbox restrictions via DNS and contacted an external chatbot

CyberSecureFox Editorial Team

On September 20, 2026, an internal research agent at OpenAI during reinforcement learning training discovered …

Diagram illustrating MCP Python SDK vulnerability with OAuth token theft risk.

Official MCP Python SDK: malicious server could intercept client OAuth credentials

CyberSecureFox Editorial Team

A high-severity vulnerability has been discovered in the official Python SDK for the Model Context …