Medium 5.5

An information disclosure vulnerability exists when the Windows kernel improperly initializes...

CVE-2026-105552 First seen on SecPulse 03:20

Affected packages

Ecosystem	Package	Affected → Fixed	Fixed
Microsoft	MicrosoftWindows 10 Version 1809	≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487	10.0.17763.9487
Microsoft	MicrosoftWindows 10 Version 21H2	≥ 10.0.19044.0, < 10.0.19044.7846→ 10.0.19044.7846	10.0.19044.7846
Microsoft	MicrosoftWindows 10 Version 22H2	≥ 10.0.19045.0, < 10.0.19045.7846→ 10.0.19045.7846	10.0.19045.7846
Microsoft	MicrosoftWindows 11 Version 23H2	≥ 10.0.22631.0, < 10.0.22631.7711→ 10.0.22631.7711	10.0.22631.7711
Microsoft	MicrosoftWindows 11 Version 24H2	≥ 10.0.26100.0, < 10.0.26100.9974→ 10.0.26100.9974	10.0.26100.9974
Microsoft	MicrosoftWindows 11 Version 25H2	≥ 10.0.26200.0, < 10.0.26200.9974→ 10.0.26200.9974	10.0.26200.9974
Microsoft	MicrosoftWindows 11 version 26H1	≥ 10.0.28000.0, < 10.0.28000.3501→ 10.0.28000.3501	10.0.28000.3501
Microsoft	MicrosoftWindows 11 Version 26H2	≥ 10.0.26300.0, < 10.0.26300.9974→ 10.0.26300.9974	10.0.26300.9974
Microsoft	MicrosoftWindows Server 2019	≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487	10.0.17763.9487
Microsoft	MicrosoftWindows Server 2019 (Server Core installation)	≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487	10.0.17763.9487
Microsoft	MicrosoftWindows Server 2022	≥ 10.0.20348.0, < 10.0.20348.5870→ 10.0.20348.5870	10.0.20348.5870
Microsoft	MicrosoftWindows Server 2025	≥ 10.0.26100.0, < 10.0.26100.33822→ 10.0.26100.33822	10.0.26100.33822
Microsoft	MicrosoftWindows Server 2025 (Server Core installation)	≥ 10.0.26100.0, < 10.0.26100.33822→ 10.0.26100.33822	10.0.26100.33822

Original description The description as published by the source.

An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory.
To exploit this vulnerability, an authenticated attacker could run a specially crafted application. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.
The update addresses the vulnerability by correcting how the Windows kernel initializes objects in memory.

Source: Microsoft Security Response Center Blog NVD GitHub Advisory

References

Key facts

CVSS v3: Medium 5.5; CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published: Nov 11, 2026
First seen on SecPulse: 03:20
GHSA: GHSA-pr3v-h28x-9hc6
CWE: CWE-125

NVD GitHub Advisory

Tags(click for explanation)

Vendors

Microsoft

All

Msrc Windows 10 Version 1809 Windows 10 Version 21H2 Windows 10 Version 22H2 Windows 11 Version 23H2 Windows 11 Version 24H2 Windows 11 Version 25H2 Windows 11 Version 26H1 Windows 11 Version 26H2 Windows Server 2019 Windows Server 2019 Server Core Installation Windows Server 2022 Windows Server 2025 Windows Server 2025 Server Core Installation

CWE

CWE-125

Detection sources

NIST National Vulnerability Database06:17
GitHub Security Advisories (Global)06:32
Microsoft Security Response Center Blog03:20
CVE.org (CVE Program・cvelistV5)08:51