What is the CVSS score of EUVD-2025-20627?

EUVD-2025-20627 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 8.7%.

Which versions of Windows Server 2012 are affected by EUVD-2025-20627?

CVE-2025-49716 is a high-severity denial-of-service vulnerability in Windows Netlogon that allows network-based attackers to exhaust system resources and disrupt authentication services across your…. A patch is available.

How to fix or mitigate EUVD-2025-20627?

Within 24 hours: Inventory all Windows domain controllers and systems running affected Netlogon services. Within 7 days: Apply vendor-released patch to all domain controllers and priority authentication systems; test in non-production environment first. Within 30 days: Complete patching across all Windows systems in your environment and validate domain authentication functionality.

Windows Server 2012 EUVD-2025-20627

| CVE-2025-49716 HIGH

Uncontrolled Resource Consumption (CWE-400)

2025-07-08 secure@microsoft.com

Microsoft Denial Of Service Windows Server 2012 Windows Server 2016 Windows Server 2022 Windows Server 2008 Windows Server 2022 23h2 Windows Server 2019 Windows

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:29 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

6.1.7601.27820,6.0.6003.23418,10.0.17763.7558

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20627

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 7.5

DescriptionCVE.org

Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.

Analysis

Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.

Technical ContextAI

A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400).