What is the CVSS score of EUVD-2025-20601?

EUVD-2025-20601 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate EUVD-2025-20601?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Windows EUVD-2025-20601

Q: Which versions of Windows are affected by EUVD-2025-20601?

Organizations using Improper certificate validation in Windows SMB should be aware of notable risk from CVE-2025-48802 rated CVSS 6.5.. A patch is available.

| CVE-2025-48802 MEDIUM

Improper Certificate Validation (CWE-295)

2025-07-08 secure@microsoft.com

Windows Information Disclosure Microsoft Windows 11 22h2 Windows 11 23h2 Windows Server 2022 Windows Server 2022 23h2

6.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-295 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V12 - Secure Communication Certificate validation
Impact	CVSS score of 6.5 (MEDIUM).

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.

Earlier versions of this analysis (1)

v1 Mar 16, 2026 - 04:21 CVSS 6.5

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

Affected VersionsENISA

Windows 11 version 22H2 10.0.22621.0 <10.0.22621.5624

Windows Server 2022 10.0.20348.0 <10.0.20348.3932

Windows 11 Version 23H2 10.0.22631.0 <10.0.22631.5624

Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 <10.0.25398.1732

Windows 11 version 22H3 10.0.22631.0 <10.0.22631.5624

Affected Packages

euvd windows_11_version_22h2 fix: 10.0.22621.5624

euvd windows_11_version_22h3 fix: 10.0.22631.5624

euvd windows_11_version_23h2 fix: 10.0.22631.5624

euvd windows_server_2022 fix: 10.0.20348.3932

euvd windows_server_2022_23h2_edition_server_core_installation fix: 10.0.25398.1732

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 5 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Certificate Validation (CWE-295).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Patch available

Apr 16, 2026 - 05:29 EUVD

10.0.22621.5624,10.0.20348.3932,10.0.22631.5624

CVE Published

Jul 08, 2025 - 17:15 nvd

MEDIUM 6.5

Executive ViewAI

Why It Matters

Organizations using Improper certificate validation in Windows SMB should be aware of notable risk from CVE-2025-48802 rated CVSS 6.5. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 77% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.