What is the CVSS score of EUVD-2025-20539?

EUVD-2025-20539 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%.

How to fix or mitigate EUVD-2025-20539?

Within 24 hours: Identify all systems running Microsoft PC Manager and document current versions via SCCM or endpoint inventory tools. Within 7 days: Deploy the latest patched version of Microsoft PC Manager via Windows Update or WSUS to all affected systems; verify deployment completion. Within 30 days: Conduct audit logs review for any suspicious privilege escalation attempts originating from PC Manager processes on patched and unpatched systems.

Pc Manager EUVD-2025-20539

Q: Which versions of Pc Manager are affected by EUVD-2025-20539?

CVE-2025-49738 is a privilege escalation vulnerability in Microsoft PC Manager that allows authenticated local users to gain elevated system privileges through improper handling of symbolic links.. A patch is available.

| CVE-2025-49738 HIGH

Improper Link Resolution Before File Access (CWE-59)

2025-07-08 secure@microsoft.com

Information Disclosure Microsoft Pc Manager

7.8

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-59 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V5 - File Handling Symlink resolution safety
Impact	CVSS score of 7.8 (HIGH).

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privileges locally.

Earlier versions of this analysis (1)

v1 Mar 16, 2026 - 04:21 CVSS 7.8

RemediationAI

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

Affected VersionsENISA

Microsoft PC Manager 1.0.0 <3.17.4

Affected Packages

euvd microsoft_pc_manager fix: 3.17.4

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package 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 Link Resolution Before File Access (CWE-59).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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 - 06:28 EUVD-patch-fix

executive summary

Patch available

Apr 16, 2026 - 05:29 EUVD

3.17.4

CVE Published

Jul 08, 2025 - 17:16 nvd

HIGH 7.8

Executive ViewAI

Why It Matters

CVE-2025-49738 is a privilege escalation vulnerability in Microsoft PC Manager that allows authenticated local users to gain elevated system privileges through improper handling of symbolic links. Organizations deploying PC Manager across their Windows infrastructure should prioritize patching to prevent insider threats and lateral movement within compromised user accounts.

Business Impact: Medium

Compensating Controls

Apply vendor patch. Until patch deployment completes: restrict PC Manager execution to non-privileged user accounts where possible, disable PC Manager on systems not requiring its functionality, and monitor Event Viewer Security logs for privilege escalation events (Event ID 4688 with elevated token claims).

Threat Intelligence Overview

EPSS Score

0.1%

Top 75% 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 HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

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.