Microsoft SharePoint Server Deserialization Flaw Now Actively Exploited in Ransomware Campaigns (CVE-2026-45659)

Scope: Microsoft SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Enterprise Server 2016 (On-Premises Only)

Severity: Red

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Cisco ClamAV ZIP Parser Denial of Service Vulnerabilities with Public Exploits (CVE-2026-20337 / CVE-2026-20338)

Scope: Cisco Secure Endpoint Connector for Windows, Mac, and Linux (ClamAV Versions Prior to 1.4.4 and 1.0.9)

Severity: High

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Windows Notepad App Remote Code Execution via Crafted Markdown File (CVE-2026-20841)

Scope: Windows Notepad App (Microsoft Store Version, Build 11.2510 and Earlier) on Windows 10 and Windows 11

Severity: High

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Cisco August 2026 Security Bundle Patches Critical IOS XE and SD-WAN Vulnerabilities (CVE-2026-20303 and Others)

Scope: Cisco Catalyst SD-WAN Software, Cisco IOS XE Software, Cisco IOS Software, Cisco Integrated Management Controller

Severity:  Red

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Oracle Database "khunt" Post-Exploitation Toolkit Deployed via SQL Injection Without Writing Files to Disk

Scope: Oracle Database (Internet-Facing Web Applications Using JDBC Connections with Elevated Privileges)

Severity: Red

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IBM WebSphere Application Server Unauthenticated SSRF via SIP Container Enables Internal Network Compromise (CVE-2026-14529)

Scope: IBM WebSphere Application Server Traditional 8.5 and 9.0 / WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.8 (with SIP Container Feature Enabled)

Severity: Red

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