CVE tracker / CVE-2025-27728
CVE-2025-27728
CVE-2025-27728 is the Windows Kernel-Mode Driver Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published April 8, 2025.
Risk summary
HighElevation of Privilege
7.8
CVSS v3 base
0.6%
EPSS: chance of exploitation in 30 days
High
Severity
Important
Microsoft's rating
Less Likely
Microsoft: exploitation
No
In CISA KEV
Microsoft describes it: “Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.”
How to fix it
Microsoft lists 4 affected products and the update that fixes each:
- KB5055523 · fixed build 10.0.26100.3775
Windows Server 2025, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows Server 2025 (Server Core installation)
What Microsoft changed
- April 8, 2025: Information published.
Details
- Weakness
- CWE-125: Out-of-bounds Read
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- April 8, 2025
- Last revised
- April 8, 2025
Get told when this changes
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References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.