Rule Update
26-016 (April 21, 2026)
DESCRIPTION
* indicates a new version of an existing rule
Deep Packet Inspection Rules:
Kerberos KDC Server
1012552 - Identified Kerberos PKINIT AD CS Certificate Impersonation via Certipy
1012336* - Microsoft Windows Kerberos Security Feature Bypass Vulnerability (CVE-2025-29809)
Trend Micro Control Manager
1008760* - Control Manager SQL Injection Vulnerability (CVE-2017-11383)
1008589* - Control Manager cmdHandlerLicenseManager SQL Injection Vulnerability (CVE-2017-11384)
1008721* - Control Manager cmdHandlerStatusMonitor SQL Injection Vulnerability (CVE-2017-11385)
Web Server Common
1010697* - InterScan Messaging Security Virtual Appliance Widget Information Disclosure Vulnerability (CVE-2020-27019)
Web Server HTTPS
1008293* - Control Manager Download Multiple Directory Traversal Information Disclosure Vulnerabilities
1008857* - Control Manager Multiple SQL Injection Remote Code Execution Vulnerability (CVE-2018-3604)
1012461* - LibreNMS Stored Cross-Site Scripting Vulnerability (CVE-2025-55296)
Web Server Miscellaneous
1010627* - InterScan Web Security Virtual Appliance Buffer Overflow Vulnerability (CVE-2020-28578)
Web Server SharePoint
1012554 - Microsoft SharePoint Server Spoofing Vulnerability (CVE-2026-32201)
Windows SMB Server
1012219* - Deep Security Agent Command Injection Vulnerability (CVE-2024-51503)
Integrity Monitoring Rules:
There are no new or updated Integrity Monitoring Rules in this Security Update.
Log Inspection Rules:
There are no new or updated Log Inspection Rules in this Security Update.
Deep Packet Inspection Rules:
Kerberos KDC Server
1012552 - Identified Kerberos PKINIT AD CS Certificate Impersonation via Certipy
1012336* - Microsoft Windows Kerberos Security Feature Bypass Vulnerability (CVE-2025-29809)
Trend Micro Control Manager
1008760* - Control Manager SQL Injection Vulnerability (CVE-2017-11383)
1008589* - Control Manager cmdHandlerLicenseManager SQL Injection Vulnerability (CVE-2017-11384)
1008721* - Control Manager cmdHandlerStatusMonitor SQL Injection Vulnerability (CVE-2017-11385)
Web Server Common
1010697* - InterScan Messaging Security Virtual Appliance Widget Information Disclosure Vulnerability (CVE-2020-27019)
Web Server HTTPS
1008293* - Control Manager Download Multiple Directory Traversal Information Disclosure Vulnerabilities
1008857* - Control Manager Multiple SQL Injection Remote Code Execution Vulnerability (CVE-2018-3604)
1012461* - LibreNMS Stored Cross-Site Scripting Vulnerability (CVE-2025-55296)
Web Server Miscellaneous
1010627* - InterScan Web Security Virtual Appliance Buffer Overflow Vulnerability (CVE-2020-28578)
Web Server SharePoint
1012554 - Microsoft SharePoint Server Spoofing Vulnerability (CVE-2026-32201)
Windows SMB Server
1012219* - Deep Security Agent Command Injection Vulnerability (CVE-2024-51503)
Integrity Monitoring Rules:
There are no new or updated Integrity Monitoring Rules in this Security Update.
Log Inspection Rules:
There are no new or updated Log Inspection Rules in this Security Update.
Featured Stories
Old Vulnerabilities, New AI Era, Amplified Risk: How Outdated Flaws Continue to Fuel the N-Day Exploit MarketEven as AI adoption accelerates, old exploits remain overlooked weaknesses. Underground trends show a renewed demand for exploits, with cybercriminals relying on aging but still effective vulnerabilities. We examine this blind spot and why long-standing issues need to be addressed.Read more
Beware of MCP Hardcoded Credentials: A Perfect Target for Threat ActorsPoor secret management in MCP servers can lead to serious consequences, including data breaches and supply chain attacks. This article examines the reality of these unsecure configurations and offers practical recommendations that minimize the chances of exposure.Read more
Lessons in Resilience from the Race to Patch SharePoint VulnerabilitiesIn this article, Trend Micro discusses how the fast-moving attacks using CVE-2025-53770 and CVE-2025-53771 have underscored the essential role of virtual patching and reliable intelligence in protecting organizations against evolving threats.Read more
Unveiling AI Agent Vulnerabilities Part V: Securing LLM ServicesTo conclude our series on agentic AI, this article examines emerging vulnerabilities that threaten AI agents, focusing on providing proactive security recommendations on areas such as code execution, data exfiltration, and database access.Read more