High severity · published Apr 8, 2025
CVE-2025-27733
Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally
7.8
CVSS
0.7%
EPSS
No
On KEV
Description
Out-of-bounds read in Windows NTFS allows an unauthorized attacker to elevate privileges locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 10 1507 · Microsoft
before 10.0.10240.20978; before 10.0.10240.20978 · source: NVD
W1
Windows 10 1607 · Microsoft
before 10.0.14393.7969; before 10.0.14393.7969 · source: NVD
W1
Windows 10 1809 · Microsoft
before 10.0.17763.7136; before 10.0.17763.7136 · source: NVD
WS
Windows Server 2008 · Microsoft
r2 · source: NVD
WS
Windows Server 2012 · Microsoft
r2 · source: NVD
WS
Windows Server 2016 · Microsoft
before 10.0.14393.7969 · source: NVD
WS
Windows Server 2019 · Microsoft
before 10.0.17763.7136 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27733
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-27733
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27733
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