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windows server security

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Windows Server security content on WindowsForum covers vulnerability patching, threat actor activity, and configuration hardening for enterprise Windows Server environments. Key themes include CVE-2026-41089 requiring prioritized domain controller patching, the OP-512 China-linked IIS web shell framework targeting Windows servers, and the phased removal of RC4 from Kerberos encryption in Windows Server. Additional topics include runtime protection for Windows Server VMs across cloud platforms, Open vSwitch denial-of-service risks affecting mixed estates, and exposure management strategies for Windows Server remediation. The tag reflects ongoing security challenges in maintaining Windows Server infrastructure against both state-aligned threats and legacy protocol weaknesses.
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    Tanium Autonomous IT: Closed-Loop Remediation for Windows Exposure Management

    Tanium used the week of June 10, 2026, to advance its Autonomous IT strategy across Japan, Las Vegas conference promotion, exposure management, AI-driven security operations, FedRAMP-authorized services, ServiceNow integration, and Windows Server vulnerability remediation messaging for...
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    • autonomous-it endpoint remediation vulnerability management windows server security
    • Replies: 0
    • Forum: Windows News
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    OP-512: China-Linked IIS Web Shell Framework Targets Windows Servers

    ReliaQuest researchers disclosed on June 5, 2026, that a newly tracked threat cluster called OP-512 is targeting Microsoft Internet Information Services servers with a custom three-part web shell framework, and they assess with moderate to high confidence that the espionage activity is linked to...
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    • dmz and segmentation dns monitoring iis security iis web shell incident response legacy .net threat intelligence web shell attacks web shell detection web shells windows server windows server 2016 windows server security
    • Replies: 3
    • Forum: Windows News
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    CVE-2026-41089: Patch Domain Controllers First by Reachability (May 2026)

    Patch CVE-2026-41089 first on any domain controller that is reachable from outside the tightly controlled server networks you trust: internet-facing paths, partner routes, broad VPN pools, lab networks, DMZ routes, contractor networks, unmanaged client networks, or legacy firewall exceptions...
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    • active directory active directory risks cve-2026-41089 endpoint patching netlogon rce netlogon vulnerability windows server windows server security
    • Replies: 1
    • Forum: Windows News
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    CVE-2026-34956: Open vSwitch FTP ALG DoS—Why Windows Teams Should Care

    CVE-2026-34956 is a remote denial-of-service vulnerability in Open vSwitch, disclosed in spring 2026, that can crash affected userspace conntrack deployments when a malformed FTP EPASV command longer than 255 characters is processed by the FTP helper. The uncomfortable part is not that FTP has...
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    • cve 2026-34956 ftp alg dos open vswitch windows server security
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    • Forum: Security Alerts
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    KT Joins NATO Locked Shields 2026 to Stress-Test Telecom Cyber Resilience

    KT said on May 10 that it joined NATO CCDCOE’s Locked Shields 2026 cyber-defense exercise for a second consecutive year, participating as South Korea’s only domestic telecommunications company among 47 Korean civilian, government, and military organizations in the April 20–24 training event. The...
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    • nato locked shields red team blue team telecom security windows server security
    • Replies: 0
    • Forum: Windows News
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    KT’s Locked Shields 2026: Telecom Cyber Resilience Hits the Windows Server Frontier

    KT said on May 10, 2026, that it participated in NATO CCDCOE’s Locked Shields 2026 cyber defence exercise from April 20 to 24 as part of a South Korea-Hungary joint team, marking the Korean telecom operator’s second consecutive year in the drill. The announcement is not just another corporate...
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    • cyber resilience locked shields telecom security windows server security
    • Replies: 0
    • Forum: Windows News
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    Upwind Adds Windows Server VM Runtime Protection on AWS, Azure, and Google Cloud

    Upwind announced on May 5, 2026, that its runtime protection and visibility platform now supports Windows Server virtual machines running Windows Server 2016 or later across Amazon EC2, Google Cloud Compute, and Microsoft Azure VMs. That is a product update, but it lands in a market argument...
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    • cloud runtime protection cnapp runtime visibility multi cloud monitoring windows server security
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    • Forum: Windows News
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    AES-Only Kerberos: Prepare for RC4 Decommission in Windows Server

    Microsoft has begun the phased removal of RC4 from the Kerberos ticketing path in Windows Server, rolling out audit telemetry and controls in the January 13, 2026 updates and locking the timetable toward a full enforcement phase that will default to AES-only Kerberos encryption by July 2026...
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    • active directory encryption standards kerberos aes windows server security
    • Replies: 0
    • Forum: Windows News
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