PT-2026-87555 · Microsoft · Windows 11 Version 26H1

CVE-2026-69544

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Published

2026-09-08

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Updated

2026-09-08

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.

Fix

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-69544

Affected Products

Windows 11 Version 26H1