CVE-2026-24283

Published: Mar 10, 2026

Modified: Apr 14, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.

Vendor	Product	Versions
Microsoft	Windows 11 Version 24H2	affected `10.0.26100.0 - < 10.0.26100.8037`
Microsoft	Windows 11 Version 25H2	affected `10.0.26200.0 - < 10.0.26200.8037`
Microsoft	Windows 11 version 26H1	affected `10.0.28000.0 - < 10.0.28000.1719`
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	affected `10.0.25398.0 - < 10.0.25398.2207`
Microsoft	Windows Server 2025	affected `10.0.26100.0 - < 10.0.26100.32522`
Microsoft	Windows Server 2025 (Server Core installation)	affected `10.0.26100.0 - < 10.0.26100.32522`

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

vendor-advisory

patch

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