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Security News, Assessments & Alerts

Security News, Assessments & Alerts

Security Issues, Vulnerabilities, Exploits & Government Alerts

Anthropic MCP Design Vulnerability Enables RCE, Threatening AI Supply Chain

Anthropic MCP Design Vulnerability Enables RCE, Threatening AI Supply Chain

Ravie LakshmananApr 20, 2026Artificial Intelligence / Vulnerability Cybersecurity researchers have discovered a critical “by design” weakness in the Model Context Protocol’s (MCP) architecture that could pave the way for remote code execution and have a… 

Researchers Detect ZionSiphon Malware Targeting Israeli Water, Desalination OT Systems

Researchers Detect ZionSiphon Malware Targeting Israeli Water, Desalination OT Systems

Cybersecurity researchers have flagged a new malware called ZionSiphon that appears to be specifically designed to target Israeli water treatment and desalination systems. The malware has been codenamed ZionSiphon by Darktrace, highlighting its ability to… 

Vercel Breach Tied to Context AI Hack Exposes Limited Customer Credentials

Vercel Breach Tied to Context AI Hack Exposes Limited Customer Credentials

Ravie LakshmananApr 20, 2026Cloud Security / Data Breach Web infrastructure provider Vercel has disclosed a security breach that allows bad actors to gain unauthorized access to “certain” internal Vercel systems. The incident stemmed from the… 

.74M Hack Shuts Down Sanctioned Grinex Exchange After Intelligence Claims

$13.74M Hack Shuts Down Sanctioned Grinex Exchange After Intelligence Claims

Ravie LakshmananApr 18, 2026Money Laundering / Regulatory Compliance Grinex, a Kyrgyzstan-incorporated cryptocurrency exchange sanctioned by the U.K. and the U.S. last year, said it’s suspending operations after it blamed Western intelligence agencies for a $13.74… 

Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet

Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet

Ravie LakshmananApr 18, 2026IoT Security / Vulnerability Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai-botnet variants on compromised devices, according to findings from Fortinet FortiGuard… 

Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched

Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched

Ravie LakshmananApr 17, 2026Vulnerability / Endpoint Security Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems. The activity involves the exploitation of… 

NIST Limits CVE Enrichment After 263% Surge in Vulnerability Submissions

NIST Limits CVE Enrichment After 263% Surge in Vulnerability Submissions

Ravie LakshmananApr 17, 2026Vulnerability Management The National Institute of Standards and Technology (NIST) has announced changes to the way it handles cybersecurity vulnerabilities and exposures (CVEs) listed in its National Vulnerability Database (NVD), stating it… 

Operation PowerOFF Seizes 53 DDoS Domains, Exposes 3 Million Criminal Accounts

Operation PowerOFF Seizes 53 DDoS Domains, Exposes 3 Million Criminal Accounts

Ravie LakshmananApr 17, 2026DDoS / Cybercrime An international law enforcement operation has taken down 53 domains and arrested four people in connection with commercial distributed denial-of-service (DDoS) operations that were used by more than 75,000… 

Apache ActiveMQ CVE-2026-34197 Added to CISA KEV Amid Active Exploitation

Apache ActiveMQ CVE-2026-34197 Added to CISA KEV Amid Active Exploitation

Ravie LakshmananApr 17, 2026Vulnerability / Enterprise Security A recently disclosed high-severity security flaw in Apache ActiveMQ Classic has come under active exploitation in the wild, per the U.S. Cybersecurity and Infrastructure Security Agency (CISA). To that end,…