Qualys Response to ProxyNotShell Microsoft Exchange Server Zero-Day Threat Using Qualys Cloud Platform

On September 29, 2022, active attacks against Microsoft Exchange were reported by Vietnamese cybersecurity company GTSC. The researcher at GTSC reported two critical vulnerabilities now named “ProxyNotShell” in Microsoft Exchange Server via two advisories issued by Zero Day Initiative:...

WARNING: New Unpatched Microsoft Exchange Zero-Day Under Active Exploitation

Security researchers are warning of previously undisclosed flaws in fully patched Microsoft Exchange servers being exploited by malicious actors in real-world attacks to achieve remote code execution on affected systems. The advisory comes from Vietnamese cybersecurity company GTSC, which...