What is CVE-2025-27483?

CVE-2025-27483 is a security advisory published by Microsoft with High severity. EchelonGraph links Microsoft's advisory rather than copying its page; it is at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27483.

Which CVE IDs does CVE-2025-27483 cover?

CVE-2025-27483 covers the following CVE IDs: CVE-2025-27483. Each CVE has its own detail page on EchelonGraph Pulse with its EchelonGraph score.

What is the CVSS v3 score of CVE-2025-27483?

CVE-2025-27483 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-27483?

CVE-2025-27483 affects 12 products, including: Windows 10 Version 1607 for 32-bit Systems; Windows 10 Version 1607 for x64-based Systems; Windows 10 Version 1809 for 32-bit Systems; Windows 10 Version 1809 for x64-based Systems; Windows 10 for 32-bit Systems; and others — see the full list on the advisory page.

How do I remediate CVE-2025-27483?

Microsoft lists 4 KB articles for CVE-2025-27483: KB5055519, KB5055547, KB5055521, KB5055557. Each is listed on this page with its fixed build; Microsoft's advisory is at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27483.

CVE-2025-27483HighMicrosoft CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Microsoft security update for CVE-2025-27483 — Windows

Vendor

Microsoft Security Response Center (MSRC)

Published

April 8, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-27483 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27483. This page also shows what EchelonGraph holds for CVE-2025-27483, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products12

Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2019
Windows Server 2019 (Server Core installation)

✅ Updates Microsoft lists: 4 KB articles

4 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB article	Update	Fixed build
KB5055519	Security Update	10.0.17763.7136
KB5055547	Security Update	10.0.10240.20978
KB5055521	Security Update	10.0.14393.7969
KB5055557	Monthly Rollup	6.3.9600.22523

🧭 EchelonGraph on CVE-2025-27483

EchelonGraph score: 7.8 HIGH
CISA KEV: Not listed
Fix status: A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2025-27483, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 CVE IDs covered (1)

📋 Microsoft's advisory

🎯 Affected products12

✅ Updates Microsoft lists: 4 KB articles

🧭 EchelonGraph on CVE-2025-27483

🔗 References (9)