Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Providers allows an authorized attacker to elevate privileges locally.
Published: 2026-10-13
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: Local Privilege Escalation
Action: Apply Patch
AI Analysis

Impact

A race condition arises in Windows Credential Providers when multiple processes share a resource that is not properly synchronized, allowing an authorized local attacker to trigger concurrent execution that results in privilege escalation on the target machine. By manipulating the timing of credential requests, the attacker can obtain elevated local rights and subsequently access or modify protected data, install software, or alter system configurations, thus compromising confidentiality, integrity, and availability of the affected system.

Affected Systems

The vulnerability impacts a broad range of Microsoft operating systems. Vulnerable Windows 10 builds include versions 1607, 1809, 21H2, and 22H2. Windows 11 releases from 23H2 through 26H2, as well as the 26H1 build, are affected. Additionally, all major Windows Server iterations—2012, 2012 R2, 2016, 2019, 2022, and 2025—across both full and Server‑Core installations, are also susceptible.

Risk and Exploitability

With a CVSS base score of 7.8 the vulnerability is rated high severity, indicating that exploitation would grant significant capabilities to an attacker. The EPSS score is not available, so the current probability of exploitation is uncertain, yet the lack of a KEV listing suggests no public exploit has yet been reported. The attack vector requires a local, authorized user who can initiate credential requests; exploitation would involve inducing a race condition between credential provider instances to gain higher privileges.

Generated by OpenCVE AI on October 13, 2026 at 21:58 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Windows security update that contains the fix for CVE‑2026‑103568, as detailed on the Microsoft Security Response Center; be sure to include all affected Credential Provider DLLs.
  • Restrict the execution of credential provider components to trusted processes by configuring AppLocker or Software Restriction Policies, thereby limiting the points where an untrusted local user could trigger the race condition.
  • Continuously monitor security and authentication event logs for signs of abnormal credential provider activity or local privilege escalation attempts; consider disabling non‑standard or beta credential provider modules until the patch is applied.

Generated by OpenCVE AI on October 13, 2026 at 21:58 UTC.

Tracking

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Advisories

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History

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Providers allows an authorized attacker to elevate privileges locally.
Title Windows Credential Providers Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
Weaknesses CWE-122
CWE-362
CPEs cpe:2.3:a:microsoft:windows_11_version_26h2_for_arm64-based_systems:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 23h2 Windows 11 24h2 Windows 11 25h2 Windows 11 26h1 Windows 11 Version 26h2 For Arm64-based Systems Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2025
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T22:25:36.116Z

Reserved: 2026-09-30T20:48:29.839Z

Link: CVE-2026-103568

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:17:52.943

Modified: 2026-10-13T22:17:25.330

Link: CVE-2026-103568

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T22:00:25Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow

  • CWE-362

    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')