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Smart Switch CVE-2026-20995

| EUVDEUVD-2026-12307 MEDIUM
Missing Authentication for Critical Function (CWE-306)
2026-03-16 SamsungMobile
5.3
CVSS 4.0 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

The CVSS score of 5.3 (Medium) with a network attack vector and low complexity indicates moderate real-world risk. The CVSS vector shows no confidentiality impact but partial integrity and availability impact (VI:L, VA:L), meaning attackers can modify configurations but cannot directly steal data or fully deny service. The requirement for user interaction (UI:P) is a significant mitigating factor that reduces exploit probability compared to fully unauthenticated attacks. Without access to current EPSS scores or confirmed KEV/CISA inclusion status, the baseline assessment is that this represents a moderate priority vulnerability affecting configuration integrity rather than a critical remote code execution scenario. Organizations running older Smart Switch versions should prioritize patching, particularly if devices handle sensitive data or are in security-sensitive environments. The attack complexity being low combined with network accessibility suggests this is exploitable in practice, though the user interaction requirement prevents automated, mass-scale exploitation.

Exploit ScenarioDerived

An attacker could craft a malicious link or email directing a user to interact with a compromised Smart Switch instance, allowing the attacker to remotely modify device configurations such as backup settings, sync parameters, or security-related options without the user's explicit consent. The low attack complexity and network accessibility mean an attacker could host a rogue Smart Switch service or perform man-in-the-middle attacks to intercept and modify configuration requests in transit. Once configuration is altered, the attacker could redirect data backups to attacker-controlled servers, disable security features, or modify device pairing settings, potentially leading to unauthorized data access or further device compromise.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

Smart Switch versions prior to 3.7.69.15 contain an exposure of sensitive functionality vulnerability that allows remote attackers to set specific configurations without proper authorization. An unauthenticated attacker can leverage network access to manipulate configuration settings on affected devices, potentially leading to information disclosure and integrity compromise. This vulnerability requires user interaction according to the CVSS vector, suggesting a social engineering or phishing component may be necessary for successful exploitation.

RemediationAI

The primary remediation is to upgrade Samsung Smart Switch to version 3.7.69.15 or later immediately. Users can download the latest version from Samsung's official website or through automatic update mechanisms available within the application itself. For environments where immediate patching is not feasible, restrict Smart Switch usage to trusted networks only and disable remote configuration capabilities if such options are available in the application settings. Additionally, monitor Smart Switch logs for unauthorized configuration change attempts and consider restricting which user accounts have permission to execute Smart Switch on shared devices. Organizations managing multiple devices should use Samsung's mobile device management (MDM) solutions to centrally enforce configuration protection and ensure all instances are updated to the patched version.

Affected VersionsENISA

Smart Switch patch: 3.7.69.15

Affects your stack

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

Technical ContextAI · show details

The vulnerability exists in Samsung Smart Switch, a data migration and device management application used across Samsung mobile devices and ecosystem services. The root cause appears to be improper access control mechanisms that fail to adequately restrict configuration modification functions to authorized users. The absence of explicit CWE attribution suggests this may involve multiple contributing factors including authentication bypass or insecure direct object references (IDOR-like patterns). The CVSS 4.0 vector indicates the attack surface is network-accessible with low attack complexity, meaning no special conditions or tool development is required for exploitation. The vulnerable component handles sensitive device configuration settings that should remain protected from unauthorized modification.

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Severity by source

NVD PRIMARY 5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
Low
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

Exposure of sensitive functionality to an unauthorized actor in Smart Switch prior to version 3.7.69.15 allows remote attackers to set a specific configuration.

Executive ViewAI

Why It Matters

Organizations using Smart Switch should be aware of moderate risk from CVE-2026-20995 rated CVSS 5.3. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

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

Threat Intelligence Overview

EPSS Score
0.2%
Top 58% exploitable
Data Quality
4 sources
Confidence: Medium

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 0.2%
Patch available No
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

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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