Medium 5.1Published Oct 14, 2025

CVE-2025-55679Windows Kernel Information Disclosure Vulnerability

Updated under an hour ago (Oct 26, 2026, 2:00 PM ET)

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It affects Microsoft Windows 10 Version 1809 and 11 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Microsoft Windows 10 Version 1809

Exploited in the last 30 days

Improper input validation in Windows Kernel allows an unauthorized attacker to disclose information locally.

CVSS: 5.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Weakness (CWE): CWE-20, CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: microsoft
NVD analysis: Analyzed
Record last updated: Feb 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Windows 10 Version 1809 microsoft:windows_10_1809	from 10.0.17763.0 before 10.0.17763.7919	CNA record
Microsoft Windows 10 Version 21H2 microsoft:windows_10_21h2	from 10.0.19044.0 before 10.0.19044.6456	CNA record
Microsoft Windows 10 Version 22H2 microsoft:windows_10_22h2	from 10.0.19045.0 before 10.0.19045.6456	CNA record
Microsoft Windows 11 version 22H2 microsoft:windows_11_22h2	from 10.0.22621.0 before 10.0.22621.6060	CNA record
Microsoft Windows 11 version 22H3 microsoft:windows_11_22h3	from 10.0.22631.0 before 10.0.22631.6060	CNA record
Microsoft Windows 11 Version 23H2 microsoft:windows_11_23h2	from 10.0.22631.0 before 10.0.22631.6060	CNA record
Microsoft Windows 11 Version 24H2 microsoft:windows_11_24h2	from 10.0.26100.0 before 10.0.26100.6899	CNA record
Microsoft Windows 11 Version 25H2 microsoft:windows_11_25h2	from 10.0.26200.0 before 10.0.26200.6899	CNA record
Microsoft Windows Server 2019 microsoft:windows_server_2019 (from the name)	from 10.0.17763.0 before 10.0.17763.7919	CNA record
Microsoft Windows Server 2022 microsoft:windows_server_2022 (from the name)	from 10.0.20348.0 before 10.0.20348.4294	CNA record
1–10 of 23

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55679	vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.