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Medium severity · published Sep 9, 2025
CVE-2025-53803
Windows Kernel Memory Information Disclosure Vulnerability
5.5
CVSS
0.7%
EPSS
No
On KEV
Description
Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 10 Version 1507 · Microsoft
10.0.10240.0 before 10.0.10240.21128 · source: vendor
W1
Windows 10 Version 1607 · Microsoft
10.0.14393.0 before 10.0.14393.8422 · source: vendor
W1
Windows 10 Version 1809 · Microsoft
10.0.17763.0 before 10.0.17763.7792 · source: vendor
W1
Windows 10 Version 21H2 · Microsoft
10.0.19044.0 before 10.0.19044.6332 · source: vendor
W1
Windows 10 Version 22H2 · Microsoft
10.0.19045.0 before 10.0.19045.6332 · source: vendor
W1
Windows 11 Version 23H2 · Microsoft
10.0.22631.0 before 10.0.22631.5909 · source: vendor
W1
Windows 11 Version 24H2 · Microsoft
10.0.26100.0 before 10.0.26100.6584 · source: vendor
W1
Windows 11 version 22H2 · Microsoft
10.0.22621.0 before 10.0.22621.5909 · source: vendor
W1
Windows 11 version 22H3 · Microsoft
10.0.22631.0 before 10.0.22631.5909 · source: vendor
WS
Windows Server 2012 · Microsoft
6.2.9200.0 before 6.2.9200.25675 · source: vendor, NVD
WS
Windows Server 2012 (Server Core installation) · Microsoft
6.2.9200.0 before 6.2.9200.25675 · source: vendor
WS
Windows Server 2012 R2 · Microsoft
6.3.9600.0 before 6.3.9600.22774 · source: vendor
Affected product
W1
Windows 10 Version 1507
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53803
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-53803
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53803
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