windows defender application control

  1. CVE-2025-53804: Windows Kernel Driver Info Disclosure—What Admins Must Do

    Note: below is a long-form, technically focused feature article about CVE-2025-53804. I drew on Microsoft’s official entry for this CVE and on Microsoft documentation and guidance about kernel-mode drivers and driver blocklists to explain the risk, likely exploitation paths, detection and...
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    • asr rules cve-2025-53804 driver ioctl driver security endpoint security hvci incident response information disclosure kernel drivers kernel memory local driver exploit local privilege escalation memory integrity msrc patch management patch tuesday threat hunting vulnerable driver blocklist windows defender application control windows kernel
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    • Forum: Security Alerts

  2. Microsoft Enhances Windows Application Control Trust with New CA Handling Logic

    In a pivotal update for enterprise environments, Windows has rolled out new certificate authority (CA) handling logic for Application Control for Business, formerly known as Windows Defender Application Control (WDAC). As announced in Microsoft’s official support documentation, this adjustment...
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    • application whitelisting ca trust inference certificate authority certificate lifecycle certificate trust policy digital signature security digital signing policies enterprise cybersecurity enterprise security it security management microsoft ca expiration os security enhancements pki certificate update pki trust management security policy automation wdac updates windows application control windows defender application control windows network security windows security patch
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    • Forum: Windows News