Security Update for Windows Defender (May 2026) (CVE-2026-41091)

The Malware Protection Engine version of Microsoft Windows Defender installed on the remote Windows host is prior to 1.1.26040.8. It is, therefore, affected by a privilege escalation vulnerability: - Improper link resolution before file access 'link following' in Microsoft Defender allows an...

Microsoft Warns of Two Actively Exploited Defender Vulnerabilities

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091 , is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could allow an attacker to gain SYSTEM...

📄 Microsoft Malware Protection Engine Type Confusion

Microsoft Malware Protection Engine type confusion vulnerability proof of concept exploit for an older vulnerability from 2017. ================================================================================================================================== | Title : Microsoft Malware Protection...

RealDefense SUPERAntiSpyware 安全漏洞

RealDefense SUPERAntiSpyware is a security tool for detecting and removing malware from RealDefense USA. A security vulnerability exists in RealDefense SUPERAntiSpyware that stems from SAS Core Service exposing dangerous functions that could lead to local elevation of privilege...

Inside a purchase order PDF phishing campaign

A PDF named "NEW Purchase Order 52177236.pdf" turned out to be a phishing lure. So we analyzed the phishing script behind it. A customer contacted me when Malwarebytes blocked the link inside a “purchase order” email they had received. Malwarebytes blocked this ionoscloud.com subdomain When I...

编号撤回

WatchGuard Firebox is a WatchGuard company that provides comprehensive network security services, from traditional IPS and GAV to web site/application control and malicious software prevention. This CVE number has been withdrawn...

Malwarebytes aces PCMag Readers’ Choice Awards and AVLab Cybersecurity Foundation tests

Malwarebytes proudly topped three categories in PCMag’s 2025 Readers’ Choice Awards, recognized for exceptional protection and user satisfaction. We also earned the latest badge from AVLab Cybersecurity Foundation’s September “Advanced In-The-Wild Malware Test” by blocking 100% of malware samples...

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