What is the CVSS score of CVE-2025-49665?

CVE-2025-49665 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Windows 10 1507 are affected by CVE-2025-49665?

CVE-2025-49665 is a privilege escalation vulnerability in Workspace Broker that allows authorized users to exploit a race condition and gain elevated system privileges on affected systems.. A patch is available.

How to fix or mitigate CVE-2025-49665?

Within 24 hours: Identify all systems running Workspace Broker and confirm current version inventory. Within 7 days: Apply vendor-released patch to all Workspace Broker instances; coordinate with relevant teams to schedule patching during maintenance windows. Within 30 days: Audit access logs for any suspicious privilege escalation attempts and validate that all systems have been patched and verified operational.

Windows 10 1507 CVE-2025-49665

EUVD-2025-20579 HIGH

Race Condition (CWE-362)

2025-07-08 secure@microsoft.com

Information Disclosure Race Condition Microsoft Windows 10 1507 Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 22h2 Windows 11 23h2 Windows 11 24h2 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025

7.8

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:31 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

10.0.26100.4652,10.0.14393.8246,10.0.22621.5624

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20579

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 7.8

DescriptionNVD

Concurrent execution using shared resource with improper synchronization ('race condition') in Workspace Broker allows an authorized attacker to elevate privileges locally.

Analysis

Concurrent execution using shared resource with improper synchronization ('race condition') in Workspace Broker allows an authorized attacker to elevate privileges locally.

Technical ContextAI

A race condition occurs when the behavior of software depends on the timing of events, such as the order of execution of threads or processes.

RemediationAI

Use proper synchronization mechanisms (locks, mutexes, atomic operations). Implement file locking for filesystem operations. Avoid TOCTOU patterns.

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CVE-2025-49665 vulnerability details – vuln.today

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Windows 10 1507 CVE-2025-49665

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

Analysis

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code