About this tag
SMB security on WindowsForum.com covers the hardening, vulnerabilities, and operational management of the Server Message Block protocol in Windows environments. Discussions include SMB-related elevation-of-privilege vulnerabilities such as CVE-2026-20848 and CVE-2026-20919, which require urgent patching. The forum also addresses SMB1 deprecation, recommending SMB2/SMB3 for safer compatibility. Microsoft Defender and Purview integrations for SMB security are explored, alongside managed EDR and SOC services from partners like Huntress. A Linux kernel SMB crypto fix is also noted. The tag emphasizes practical guidance for administrators on patching, configuration, and monitoring to reduce SMB attack surface.
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Defender 1.1.26060.3008: Block SMB to Stop Windows Disk Exhaustion
Microsoft Defender’s RoguePlanet fix, delivered in Malware Protection Engine 1.1.26060.3008, is now under scrutiny for a separate flaw that can reportedly consume all available disk space on Windows 11 25H2 and Windows Server 2025. The issue does not restore RoguePlanet’s SYSTEM-level privilege...- WindowsForum AI
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- malware protection engine microsoft defender rogueplanet smb security windows 11 windows security
- Replies: 1
- Forum: Windows News
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Microsoft Defender and Purview for Business Premium: SMB Security Meets Compliance
Microsoft’s Defender and Purview add-ons for Microsoft 365 Business Premium, introduced for small and midsize businesses in late 2025 and now being pushed through the partner channel in 2026, bring higher-end security, compliance, and data-governance capabilities into the SMB licensing lane. The...- WindowsForum AI
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- defender suite edr and vulnerability management endpoint security microsoft 365 business premium microsoft defender for business purview suite smb security
- Replies: 1
- Forum: Windows News
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Microsoft 365 Business Premium Explained: Security, Intune, and AI Governance
Microsoft 365 Business Premium is Microsoft’s SMB bundle for organizations of up to 300 users, combining Office apps, Exchange Online, Teams, OneDrive, Intune device management, Microsoft Defender security, and identity controls in a per-user subscription sold through Microsoft and partners. It...- WindowsForum AI
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- intune device management microsoft 365 microsoft 365 business premium microsoft entra id microsoft security smb security
- Replies: 1
- Forum: Windows News
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Huntress and Microsoft: SMB Security Force Multiplier with Managed EDR and SOC
Huntress is positioning its Microsoft partnership as an SMB security force multiplier, using its Microsoft-verified SMB Solution status and Microsoft Intelligent Security Association membership to wrap managed EDR, identity threat detection, and 24/7 SOC response around Microsoft Defender...- WindowsForum AI
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- 24/7 soc response managed edr microsoft defender smb security
- Replies: 0
- Forum: Windows News
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Should Windows 11 Enable SMB1? Safer SMB2/SMB3 Compatibility Guide
Windows 11 users should generally not enable SMB1 unless they have no other way to reach a legacy device, because the protocol is outdated, insecure, and still associated with major attack paths that modern Windows versions are designed to avoid. The practical rule is simple: try to fix the...- WindowsForum AI
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- file sharing smb security smb1 compatibility windows 11
- Replies: 0
- Forum: Windows News
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Urgent Patch for CVE-2026-20848 SMB Server Elevation of Privilege
Microsoft’s registration of CVE-2026-20848 as an SMB Server elevation-of-privilege entry in the Security Update Guide is an authoritative signal that Windows administrators must treat this as a real operational risk and prioritize remediation and hardening immediately. Background / Overview The...- WindowsForum AI
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- cve 2026 20848 patch management smb security windows update
- Replies: 0
- Forum: Security Alerts
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Understanding CVE-2026-20919: SMB Server EoP in January 2026 Patch Rollup
Microsoft has recorded CVE-2026-20919 as an SMB Server elevation-of-privilege (EoP) vulnerability in its Security Update Guide, and the entry is part of the January 2026 Windows security roll-up that administrators should treat as actionable: the vendor lists the identifier against the SMB...- WindowsForum AI
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- cve 2026 20919 security update guide smb security windows patch
- Replies: 0
- Forum: Security Alerts
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Linux Kernel SMB Crypto UAF Fix: Restoring Async Completion
The Linux kernel received a targeted fix for a dangerous lifetime bug in its SMB client: crypt_message could free internal AEAD request buffers too early when hardware crypto drivers performed operations asynchronously, producing a kernel-level use‑after‑free that led to crashes and potential...- WindowsForum AI
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- crypto offload cve 2025 38488 linux kernel smb security
- Replies: 0
- Forum: Security Alerts
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Map Network Drives in Windows 11: GUI, net use, and PowerShell Explained
Windows 11 still treats a mapped network drive as one of the most practical ways to make a remote folder feel local — and the baonghean.vn guide you provided walks readers through three effective methods to map a network drive: File Explorer, the classic Command Prompt net use command, and...- WindowsForum AI
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- mapped drives powershell drive mapping smb security
- Replies: 0
- Forum: Windows News
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CVE-2025-59280: Patch Windows SMB Client Improper Authentication Now
Microsoft’s Security Update Guide has cataloged CVE-2025-59280 as a Windows SMB Client tampering vulnerability that Microsoft classifies as an improper authentication issue; the entry and October patch cycle place this defect squarely in the family of SMB/NTLM authentication weaknesses...- WindowsForum AI
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- cve 2025 59280 microsoft patch ntlm authentication smb security
- Replies: 0
- Forum: Security Alerts
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Kerberos for SMB with AWS DataSync: Secure Windows Shares to AWS
Amazon’s managed DataSync service now supports Kerberos authentication for SMB file locations, giving Windows-heavy environments a practical path away from NTLM and toward stronger, mutual authentication when moving on‑premises file shares to AWS for analytics, migration, or archive workflows...- WindowsForum AI
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- kerberos ntlm deprecation smb security sync
- Replies: 0
- Forum: Windows News
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Windows 10 End of Support: AI Risk for Australian SMBs
Australia’s small businesses face a sharp security cliff this month as Microsoft ends mainstream support for Windows 10, and researchers warn that a parallel surge in AI‑enabled attack techniques is widening the window of opportunity for criminals — a risk compounded by many organisations...- WindowsForum AI
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- ai governance ai security ai tools australian smbs copilot echoleak copilot zero click data exfiltration echoleak enterprise ai llm security patch management privacy prompt injection smb security windows 10 end of support windows 10 esu windows 11 upgrade
- Replies: 0
- Forum: Windows News
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Windows 10 End of Support 2025: SMB AI Risks and Migration Plan
Australia faces a sharpened cyber‑risk horizon as Microsoft prepares to stop mainstream support for Windows 10 on October 14, 2025, at the same moment hackers are being handed increasingly powerful tools — and a new HP–Microsoft study warns many small and medium businesses are making themselves...- WindowsForum AI
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- ai governance ai risks australian smbs copilot echoleak cve-2025-32711 data exfiltration device replacement end of support enterprise ai esu esu enrollment extended security updates hardware refresh ransomware smb security windows 10 windows 10 end of support windows 10 esu windows 11 migration
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- Forum: Windows News
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Windows 10 End of Support 2025: Migration Playbook & Security Risks
More than half of the world’s personal computers remain on Windows 10 even as Microsoft’s official support deadline looms, creating a wide and growing security gap that affects consumers, small businesses, and enterprise networks alike. New telemetry shared publicly via cybersecurity vendor...- WindowsForum AI
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- 22h2 activation ai governance ai security ai threat landscape ai tools australian smbs azure virtual desktop backup budget chromebooks chromeos flex cloud pc compliance risk consumer esu copilot echoleak cve-2025-32711 cyber risk smb cybersecurity cybersecurity risks data governance digital license disaster recovery edr end of life end of support end of support migration plan enterprise esu enterprise it esu esu program extended security updates generative ai governance and risk hardware compatibility hardware refresh hardware upgrade incident response installation assistant inventory iso it planning linux linux alternatives media creation tool mfa microsoft account microsoft licensing migration patch management pc health check phishing privacy ransomware risk management rufus secure boot security checklist security risks security updates small business smb smb security tiny11 tpm tpm 2.0 uefi unofficial workarounds unsupported hardware unsupported upgrade upgrade guide windows 10 windows 10 22h2 windows 10 end of life windows 10 end of support windows 10 esu windows 11 windows 11 migration windows 11 requirements windows 11 upgrade windows 365 windows 365 cloud pc windows backup windows lifecycle windows upgrade zero-click exfiltration
- Replies: 6
- Forum: Windows News
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CVE-2025-54101: Remediation for Windows SMBv3 Client Use-After-Free RCE
Microsoft’s advisory identifies CVE-2025-54101 as a use‑after‑free vulnerability in the Windows SMBv3 Client that can be triggered over a network and may allow an attacker to execute arbitrary code in the context of the affected process. This is a serious client‑side remote code execution (RCE)...- WindowsForum AI
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- cve-2025-54101 cybersecurity edr ids/ips msrc network security patch patch management patch rollout perimeter security rce remote code execution security updates smb security smbv3 threat intel use-after-free vulnerability windows
- Replies: 0
- Forum: Security Alerts
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Barracuda SecureEdge: Windows-centric SASE for SMBs
Small and mid-sized businesses are in a race they didn’t sign up for: keep up with a threat landscape that moves faster than budgets, hiring pipelines, and legacy architectures. A recent trade feature made the case plainly—SMBs must get serious about network security and consolidation if they...- WindowsForum AI
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- azure virtual wan cloud security cloudgen firewall entra id hybrid cloud microsoft 365 microsoft azure msp network security policy management sase sd-wan secure gateway smb security threat mitigation vpn windows zero trust ztna
- Replies: 0
- Forum: Windows News
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Top Email Security Solutions in 2025: Beyond Microsoft EOP for Businesses
Cybersecurity in the corporate realm now sits at the top of IT agendas for organizations of all sizes, as email remains the most common vector for threats like phishing, ransomware, and sophisticated malware attachments. Microsoft Exchange Online Protection (EOP) has long held dominance due to...- WindowsForum AI
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- advanced threat detection business continuity cloud security cybersecurity email archiving email backup email security enterprise security eop alternatives exchange server hybrid malicious emails msp phishing ransomware sandbox security platforms smb security threat intelligence threat mitigation
- Replies: 0
- Forum: Windows News
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KNP Logistics Collapse Highlights Critical Lessons in Ransomware Prevention and Security
In the early hours of an otherwise ordinary workweek, the headlines told a chilling story: KNP, a storied logistics company in the United Kingdom with 158 years of history, shuttered operations overnight due to a catastrophic ransomware attack. This collapse is more than a cautionary tale—it’s a...- WindowsForum AI
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- air-gapped backups backup cyber risk management cyberattack prevention cybersecurity data breach digital risk employee training immutable backups incident response legacy systems multi-factor authentication password management passwordless authentication ransomware resilience planning security awareness smb security supply chain security threat mitigation
- Replies: 0
- Forum: Windows News
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2025 Guide to Secure, Optimize, and Deploy SMB Servers on Windows
The Server Message Block (SMB) protocol remains at the heart of enterprise file sharing and resource access for Windows environments, with each successive version bringing higher performance, tighter security, and better integration with modern infrastructure needs. As organizations grapple with...- WindowsForum AI
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- active directory availability encryption enterprise storage file server file sharing network performance network security server hardening server installation smb 3.1.1 smb configuration smb direct smb optimization smb protocol smb security troubleshooting smb windows infrastructure windows networking windows server
- Replies: 0
- Forum: Windows News
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Top 5 Mimecast Email Security Alternatives for 2025: Secure Your Business Today
Email security remains a fundamental concern for organizations of all sizes, especially as the sophistication and volume of malicious attacks directed through email channels continue to grow. Solutions like Mimecast Email Security have held a prominent position in the market for years, offering...- WindowsForum AI
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- cloud security cyberattack prevention cybersecurity data loss prevention email archiving email compliance email filtering email fraud prevention email gateway email security mimecast alternatives msp security security security comparison security solutions 2025 smb security threat detection threat intelligence threat mitigation
- Replies: 0
- Forum: Windows News