smb signing

  1. CVE-2026-23364 in ksmbd: Why Constant-Time MAC Checks Matter for SMB Security

    CVE-2026-23364 in ksmbd: why a constant-time MAC comparison matters more than it sounds A new CVE-2026-23364 entry tied to ksmbd, the Linux kernel’s SMB3 server implementation, highlights a security property that can look minor at first glance but matters deeply in authentication code: comparing...
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    • constant-time mac cve-2026-23364 ksmbd security smb signing
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    • Forum: Security Alerts

  2. September 2025 Windows 10 22H2 Patch Tuesday: Backup for Organizations, ESU Block & SMB Hardening

    Microsoft’s September Patch Tuesday lands for Windows 10 with a mix of stability fixes, enterprise controls and a new organizational backup capability — but the rollout is as much about operational discipline as it is about fresh features. The September 2025 cumulative updates bring build bumps...
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    • august 2025 enterprise it epa esu extended security updates intune kerberos hardening patch pki pkinit rds security smb auditing smb signing system hardening vdi windows 10 windows 10 22h2 windows 365 windows backup
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    • Forum: Windows News

  3. Auditing SMB Hardening for CVE-2025-55234: From Audit to Signing and EPA

    Microsoft has published advisory guidance tied to CVE‑2025‑55234 that focuses less on a new exploitable bug and more on enabling administrators to find and measure exposure to SMB relay‑style elevation‑of‑privilege attacks before they flip stronger hardening controls. The short form: the SMB...
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    • auditing authentication cve-2025-55234 epa extended protection for authentication group policy identity security incident response network segmentation ntlm relay phased rollout powershell siem smb smb hardening smb signing threat detection vendor patching windows security windows server 2025
    • Replies: 0
    • Forum: Security Alerts

  4. Windows 11 24H2 KB5065426: Sept 9 Cumulative Update with SSU+LCU Fixes

    Microsoft released the September 9, 2025 cumulative update for Windows 11, version 24H2 — KB5065426 (OS Build 26100.6584) — a combined security and quality rollup that both closes recent high‑priority vulnerabilities and addresses a string of functional regressions introduced earlier in the...
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    • 24h2 ai components certificate-based authentication copilot copilot platform cumulative update deployment domain controller enterprise deployment epa extended security updates file explorer iis manager kb5065426 kerberos mapping lcu msi repair ndi obs os build 26100.6584 osbuild26100 pki upgrades psdirect security hardening servicing stack update smb auditing smb signing ssu streaming uac uac prompts windows 11 windows 11 24h2
    • Replies: 1
    • Forum: Windows News

  5. Windows 11 24H2 September 2025 KB5065426: Security Update & Secure Boot Readiness

    Microsoft has released the September 2025 cumulative security update for Windows 11, version 24H2 — KB5065426 (OS Build 26100.6584) — a combined Latest Cumulative Update (LCU) and Servicing Stack Update (SSU) that delivers security hardening, targeted bug fixes, AI component updates for Copilot+...
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    • 24h2 ai components certificate expiration copilot enterprise it extended security updates file explorer ai hotpatching june 2026 kb5065426 kerberos lcu microsoft update catalog oem on-device ai passkeys windows hello patch powershell 2.0 removal psdirect recall feature secure boot smb auditing smb signing ssu ssu-lcu task manager taskbar windows 11 windows 11 24h2 windows backup windows update wsus wusa
    • Replies: 1
    • Forum: Windows News

  6. Urgent Windows NTLM Patch: Improper Authentication and Privilege Elevation

    Microsoft’s advisory that an improper authentication vulnerability in Windows NTLM can let an authenticated actor elevate privileges over the network is the latest warning flag in a year already crowded with NTLM-related incidents and active exploitation chains. The vendor entry the user...
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    • authentication credential guard cve-2025-53778 cve-2025-54918 extended security updates hardening kerberos lateral movement mfa mitigation ntlm ntlmv2 patch management phishing privilege escalation siem smb smb signing windows
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    • Forum: Security Alerts

  7. ThinManager SSRF CVE-2025-9065: Patch to v14.1 and OT security best practices

    Rockwell Automation’s ThinManager has been flagged for a high-severity Server-Side Request Forgery (SSRF) flaw that can expose an industrial control system’s ThinServer service account NTLM credentials, according to a federal advisory reissued on September 9, 2025. The vulnerability—tracked...
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    • credential theft cve-2025-9065 incident response industrial cybersecurity kerberos network segmentation ntlm ot it convergence ot security patch management rockwell smb smb signing ssrf thinmanager thinserver threat hunting v13.x v14.1
    • Replies: 0
    • Forum: Security Alerts

  8. Audit-First SMB Hardening in Windows Server: Signing and EPA Readiness

    Microsoft has added built‑in auditing to help administrators safely roll out two proven SMB server hardening features—SMB Server signing and SMB Server Extended Protection for Authentication (EPA)—so that organizations can discover compatibility gaps before they require those hardening controls...
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    • audit logs audit-first compatibility testing endpoint management event id group policy it operations microsoft education network security registry security hardening siem smb signing smb-epa spn-audit telemetry vendor management windows server windows-audit
    • Replies: 0
    • Forum: Windows News

  9. CVE-2025-53778 NTLM Privilege Elevation: Patch Now and Harden Authentication

    Microsoft’s Security Update Guide lists CVE-2025-53778 as an improper authentication vulnerability in the Windows NTLM implementation that can allow an authorized attacker to elevate privileges over a network, and administrators should treat it as a high-priority authentication risk until every...
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    • authentication vulnerability cve-2025-53778 defense in depth elevation of privilege incident response kerberos mfa network security ntlm ntlmv1 ntlmv2 patch management privilege escalation security updates smb smb signing windows security zero trust
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    • Forum: Security Alerts

  10. Recent SMB Vulnerabilities in Windows: Critical Updates and Security Tips for 2025

    As of July 8, 2025, there is no publicly available information regarding a vulnerability identified as CVE-2025-48802 in the Windows SMB Server. It's possible that this CVE has not been disclosed or documented in public databases. However, there have been recent vulnerabilities related to...
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    • cve-2025-24054 cve-2025-33073 cyber threats cybersecurity network monitoring network security ntlm spoofing patch security security advisories security best practices security updates smb signing smb vulnerability system protection vulnerability management windows windows security windows update
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    • Forum: Security Alerts

  11. NTLM Relay Attacks in 2025: Rising Threats and How to Defend Your Active Directory

    NTLM relay attacks, once thought to be a relic of the past, have re-emerged as a significant threat in modern Active Directory environments. Despite years of research and incremental security improvements, most enterprise domains remain susceptible to these attacks, creating wide-reaching risks...
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    • active directory ad security certificate services coercion techniques credential theft cyberattack prevention cybersecurity kerberos lateral movement ldap network security ntlm relay privilege escalation relay attacks risk mitigation security defaults security updates smb signing
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    • Forum: Windows News

  12. 2025 Guide: Protecting Enterprise Data from Windows Authentication Coercion Attacks

    Few developments in enterprise cybersecurity have proved as persistent—and as adaptive—as Windows authentication coercion attacks. Despite years of steady security investments by Microsoft and mounting awareness within the IT community, these sophisticated offensive techniques continue to...
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    • active directory attack tools authentication coercion coercion techniques cybersecurity domain compromise enterprise security kerberos ldap channel binding network segmentation ntlm vulnerability patch management privilege escalation rpc exploits security awareness security best practices security hardening smb signing threat detection windows authentication
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    • Forum: Windows News

  13. Windows 11 Insider Preview Build 25236: Key Changes and Fixes

    (https://blogs.windows.com/wp-content/uploads/prod/sites/44/2022/11/11.png%5B/IMG Microsoft has released Windows 11 Insider Preview Build 25236 to the Dev Channel, bringing a plethora of improvements and bug fixes. This build is primarily aimed at testing the servicing pipeline but also...
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    • audio enhancement bug fixes build 25236 build 25381 build 26200 camera improvements canary channel developer tools file explorer insider preview known issues microsoft store search functionality settings update smb signing taskbar update windows 11 windows update
    • Replies: 2
    • Forum: Windows News
  14. L

    Vulnerability issues in windows server 2008r2

    Hi Everyone, In our environment, we run Vulnerability to scan in the servers using the Nessus scanner tool, as a result it throws some Vulnerability issues as listed below: SMB Signing not required DNS Server Cache Snooping Remote Information Disclosure SSL DROWN Attack Vulnerability...
    • Leenas
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    • cve-2014-3566 cve-2016-0800 dns security encryption nessus poodle smb signing ssl drown vulnerability windows server
    • Replies: 5
    • Forum: Windows Server Forums