What is the CVSS score of CVE-2026-25203?

CVE-2026-25203 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: 0.0%.

How to fix or mitigate CVE-2026-25203?

Within 24 hours: Identify all Samsung MagicINFO 9 Server installations and document current versions using vendor tools or administrative consoles. Within 7 days: Upgrade all instances to version 21.1091.1 or later per Samsung security advisory; if upgrade is not feasible, restrict local access to trusted administrators only and implement filesystem permission audits on installation directories. Within 30 days: Complete post-upgrade validation, audit user access controls for all MagicINFO Server instances, and review logs for unauthorized privilege escalation attempts.

Magicinfo 9 Server CVE-2026-25203

EUVD-2026-21252 HIGH

Incorrect Default Permissions (CWE-276)

2026-04-10 samsung.tv_appliance

Privilege Escalation Samsung Magicinfo 9 Server

7.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Gain local access to MagicINFO 9 Server
Exploit

Exploit incorrect default file/directory permissions
Execution

Escalate privileges to system level
Impact

Execute arbitrary code with elevated rights

Vulnerability Assessment

Weakness	CWE CWE-276 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V13 - Configuration Default permission hardening MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	Attacker requires low-privilege local user account on Samsung MagicINFO 9 Server (versions before 21.1091.1). Exploits incorrect default file/directory permissions to escalate privileges. No user interaction required. Does not affect remote attackers.
Impact	Authenticated local privilege escalation with high impact (confidentiality, integrity, availability). CVSS 7.8 reflects local-only attack surface and low complexity exploitation. EPSS data unavailable; however, default permission misconfigurations typically see moderate adoption once patches lag. Organizational risk depends on MagicINFO 9 deployment scope and user access controls.
Exploit ScenarioDerived	Authenticated local user exploits incorrect default permissions on MagicINFO 9 Server (version <21.1091.1) to escalate privileges in single step. No public exploit identified at time of analysis. Requires existing local system access.

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

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 10, 2026

Local privilege escalation in Samsung MagicINFO 9 Server versions prior to 21.1091.1 enables authenticated low-privileged users to escalate to high privileges through incorrect default file/directory permissions. Attackers with local access can obtain complete system control, compromising confidentiality, integrity, and availability. Attack requires local access and low-level authentication but no user interaction. No public exploit identified at time of analysis.

RemediationAI

Vendor-released patch: upgrade to Samsung MagicINFO 9 Server version 21.1091.1 or later, which remediates the incorrect default permissions. Consult official advisory at https://security.samsungtv.com/securityUpdates for installation instructions and release notes. Until patching is feasible, implement compensating controls including restricting local user account creation, enforcing principle of least privilege through system-level access controls, and monitoring file system permissions on MagicINFO installation directories for unauthorized modifications. Audit existing user permissions to ensure no low-privilege accounts have unnecessary access to server directories. Disable or restrict local interactive logon for non-administrative accounts where operationally viable.

Affected VersionsENISA

MagicINFO 9 Server 21.1091.1

Affected Packages

euvd magicinfo_9_server no fix

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

Root cause stems from CWE-276 (Incorrect Default Permissions) where critical MagicINFO server files or directories are configured with overly permissive access controls, allowing authenticated users to modify sensitive resources. CVSS vector AV:L/PR:L indicates exploitation requires local system access with existing low-privilege credentials. The S:U scope parameter confirms privilege escalation remains contained within the vulnerable component.

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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

DescriptionCVE.org

Samsung MagicINFO 9 Server Incorrect Default Permissions Local Privilege Escalation Vulnerability

This issue affects MagicINFO 9 Server: less than 21.1091.1.

Zero Day Initiative Advisories

ZDI-26-268 Samsung MagicINFO 9 Server Incorrect Default Permissions Local Privilege Escalation Vulnerability Apr 2026

Executive ViewAI

Why It Matters

Samsung MagicINFO 9 Server contains a local privilege escalation vulnerability affecting versions before 21.1091.1 that allows authenticated low-privileged users to gain system-level control through misconfigured file permissions. Organizations running vulnerable versions face complete compromise of affected servers, with potential impact to digital signage operations, content management, and downstream systems. This risk is elevated in environments where multiple users have local access or where MagicINFO integrates with critical business processes.

Business Impact: High

Compensating Controls

Restrict local system access to MagicINFO Server to trusted administrative personnel only. Implement filesystem permission monitoring and hardening on MagicINFO installation directories (verify restrictive permissions on sensitive files/folders). Enforce principle of least privilege for all service accounts and local user accounts. Apply host-level access controls and audit local authentication. If operating in an air-gapped or highly controlled environment, privilege escalation impact may be contained-however, upgrade to 21.1091.1 or later remains the primary remediation.

Threat Intelligence Overview

EPSS Score

0.0%

Top 99% exploitable

Social Media

Sightings

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment CIRCL

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 0.0%

Patch available No

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

Scheduled

Exploitation

None

System Exposure· derived

Small

Automatable

Human Impact

High

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.