What is the CVSS score of EUVD-2025-20571?

EUVD-2025-20571 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 are affected by EUVD-2025-20571?

CVE-2025-49679 is a privilege escalation vulnerability in Windows Shell that allows authenticated attackers to gain elevated system privileges through a numeric truncation error.. A patch is available.

How to fix or mitigate EUVD-2025-20571?

Within 24 hours: Inventory all Windows systems in your environment and verify current patch levels. Within 7 days: Apply the available vendor patch from Microsoft to all affected Windows systems, prioritizing domain controllers and critical infrastructure. Within 30 days: Conduct a complete remediation validation across your enterprise and review privileged access logs for any suspicious privilege escalation attempts.

Windows EUVD-2025-20571

| CVE-2025-49679 HIGH

Numeric Truncation Error (CWE-197)

2025-07-08 secure@microsoft.com

Windows Information Disclosure 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 2008 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

10.0.14393.8246,10.0.19044.6093,10.0.17763.7558

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20571

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 7.8

DescriptionNVD

Numeric truncation error in Windows Shell allows an authorized attacker to elevate privileges locally.

AnalysisAI

A privilege escalation vulnerability in Numeric truncation error in Windows Shell (CVSS 7.8) that allows an authorized attacker. High severity vulnerability requiring prompt remediation.

Technical ContextAI

Vulnerability type: privilege escalation. CVSS 7.8 indicates high severity. Affects Numeric truncation error in Windows Shell.

RemediationAI

Monitor vendor channels for patch availability.

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EUVD-2025-20571 vulnerability details – vuln.today

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Windows EUVD-2025-20571

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code