Privilege escalation in Microsoft Windows Kernel-Mode Driver



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-27728
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Windows Server
Operating systems & Components / Operating system

Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU107219

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-27728

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary condition in Windows Kernel-Mode Driver. A local user can trigger an out-of-bounds read error and read contents of memory on the system, leading to privilege escalation.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows Server: 2012 R2 6.3.9600.21871 - 2025 10.0.26100.3476

Windows: 10 1607 10.0.14393.10 - 11 24H2 10.0.26100.3476

CPE2.3 External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-27728


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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