Background/Summary On May 6, 2026, Palo Alto Networks disclosed CVE-2026-0300, a critical buffer overflow vulnerability in...
THREAT ADVISORY Palo Alto Firewall Zero-Day May 7, 2026
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Threat Advisories
THREAT ADVISORY Deep#Door Python-based Backdoor Framework May 7, 2026
Background/Summary DEEP#DOOR (also referred to as Deep#Door or DeepDoor), has been identified as a sophisticated, stealthy...
THREAT ADVISORY DigiCert Compromise (April 2026) May 7, 2026
Background/Summary In early April 2026, DigiCert, a major global Certificate Authority (CA), suffered a targeted social...
THREAT ADVISORY Identity-target Threat Identification and Mitigation (Bypassing MFA via Session Token Theft) May 2026
Severity: High Threat Actors: Cybercriminals, ransomware groups, nation-state actors, and initial access brokers using...
THREAT ADVISORY BRIDGE:BREAK Vulnerabilities in Serial-to-IP Converters April 23, 2026
Target Sector: Healthcare & Public Health (HPH) Threat: Unauthenticated RCE, Firmware Tampering, and DoS (BRIDGE:BREAK)...
THREAT ADVISORY RedSun Zero-Day (Windows Defender) April 17, 2026
Severity: High CVSS Score: Not yet assigned (0-day local privilege escalation) Affected Systems: Windows 10, Windows 11, and...
THREAT ADVISORY Venom Info Stealer MaaS April 1, 2026
Threat Level: High (active MaaS with ongoing development and real-time credential theft capability) Target Platform:...
Commentary – CISA Guidance on O365 Admin Controls Related to the March 2026 Stryker International Incident
April 1, 2026 Subject: Blackswan Cybersecurity Response to Recent CISA Guidance on Microsoft 365 Administrative...
THREAT INTELLIGENCE REPORT LiteLLM Supply Chain Attack (March 24, 2026) March 26, 2026
LiteLLM is a widely used open-source Python library and proxy (95M+ monthly PyPI downloads) that provides a...
THREAT INTELLIGENCE REPORT Windows Remote Desktop Privilege Escalation (CVE-2026-21533) Exploit for Sale March 10, 2026
Threat Level: High (for unpatched systems with RDP exposure) Status: Patch Available (February 2026 Microsoft...