Name: Microsoft Windows: CVE-2026-83507: Windows Update Orchestrator Service Information Disclosure Vulnerability
Creator: Rapid7
Published: 2026-10-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-83507, CWE-59, CVSS 5.5, EPSS 0.00446

Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to disclose information locally.

CVSS Details

CVSS 3.1 Base Score: 5.5
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Microsoft Windows	—	2026-10 Cumulative Update for Microsoft Windows Server 2022, version 21H2 (KB5126655)2026-10 Cumulative Update for Microsoft Windows 11, version 24H2 (KB5127648)2026-10 Cumulative Update for Microsoft Windows 11, version 23H2 (KB5126653)2026-10 Cumulative Update for Microsoft Windows Server 2022, version 22H2 (KB5126655)2026-10 Cumulative Update for Microsoft Windows 11, version 25H2 (KB5127648)2026-10 Cumulative Update for Microsoft Windows Server 2025, version 24H2 (KB5126646)2026-10 Cumulative Update for Microsoft Windows 10, version 21H2 (KB5126657)2026-10 Cumulative Update for Microsoft Windows 11, version 26H1 (KB5127646)	Oct 13, 2026	Oct 13, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence