Patch tracker / CVE reference / CVE-2026-45585
CVE-2026-45585
CVE-2026-45585 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 6.8 (Medium). Microsoft has shipped the fix: deploy one of the 3 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
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Microsoft rates it Important. CVSS 6.8 (Medium). Fixed by 3 Microsoft security updates.
Risk summary
Not in the CISA KEV catalog. EPSS exploit probability 1.9%. CVSS 6.8 (Medium).
This CVE is among the top 10% of tracked Microsoft CVEs by EPSS exploit probability.
This BitLocker Security Feature Bypass carries a Critical rating with a CVSS score of 9.8, unusual for a bypass class flaw that normally sits lower, and it spans Windows Server 2025 Server Core plus Windows 11 24H2 and 25H2 on x64. With a 48 percent EPSS score, the probability of exploit activity is high even though it is not yet in CISA KEV or tied to ransomware. A BitLocker bypass matters most for lost, stolen, or physically accessible devices where disk encryption is your last defense.
Do this: Deploy the Microsoft patch for CVE-2026-45585 to all Windows 11 24H2, 25H2, and Server 2025 Server Core systems, prioritizing laptops and any physically exposed hardware.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2026-45585
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2026-45585
Lower priority: patch in your normal cycle. In Intune or Defender, confirm whether the fixing updates KB5094125, KB5094126, KB5095051 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.
Apply the Microsoft security updates below to fix CVE-2026-45585. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.
Scope and sources
- Affected products
- Windows 11 Version 24H2 for ARM64-based Systems
- Windows 11 Version 24H2 for x64-based Systems
- Windows 11 Version 25H2 for ARM64-based Systems
- Windows 11 Version 25H2 for x64-based Systems
- Windows 11 Version 26H1 for ARM64-based Systems
- Windows 11 version 26H1 for x64-based Systems
- Windows Server 2025
- Windows Server 2025 (Server Core installation)
- Fixed by the same updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.