Medium severity · published Oct 14, 2025
CVE-2025-55334
Windows Kernel Security Feature Bypass Vulnerability
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
Cleartext storage of sensitive information in Windows Kernel allows an unauthorized attacker to bypass a security feature 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)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 11 Version 23H2 · Microsoft
10.0.22631.0 before 10.0.22631.6060 · source: vendor
W1
Windows 11 Version 24H2 · Microsoft
10.0.26100.0 before 10.0.26100.6899 · source: vendor
W1
Windows 11 Version 25H2 · Microsoft
10.0.26200.0 before 10.0.26200.6899 · source: vendor
W1
Windows 11 version 22H2 · Microsoft
10.0.22621.0 before 10.0.22621.6060 · source: vendor
W1
Windows 11 version 22H3 · Microsoft
10.0.22631.0 before 10.0.22631.6060 · source: vendor
W1
Windows 11 22h2 · Microsoft
before 10.0.22621.6060 · source: NVD
W1
Windows 11 23h2 · Microsoft
before 10.0.22631.6060 · source: NVD
W1
Windows 11 24h2 · Microsoft
before 10.0.26100.6899 · source: NVD
W1
Windows 11 25h2 · Microsoft
before 10.0.26200.6899 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55334
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55334
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55334
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