Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessGain local device access
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DeliveryIdentify active installation restriction policy
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ExploitCraft data to spoof authenticity check
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ExecutionSubmit crafted input to PackageManagerService
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PersistBypass installation restriction
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ImpactInstall unauthorized application
Vulnerability Assessment
| Exploitation Conditions | The attacker must have local access to the targeted Samsung Mobile Device running Android 14, 15, or 16 prior to SMR Mar-2026 Release 1. The CVSS 4.0 vector specifies PR:N, meaning no elevated Android permissions or special privileges are required beyond local device presence - a standard unprivileged app context may suffice. Exploitation is only meaningful against devices where installation restrictions are actively configured and enforced; without such restrictions in place, there is no policy to bypass and the practical impact is negligible. Remote exploitation is ruled out by the AV:L vector. SSVC's automatable: no designation indicates the attack cannot be trivially scripted for large-scale targeting, suggesting it requires deliberate, targeted effort against a specific device. |
| Impact | The CVSS 4.0 score of 6.9 with VI:H reflects meaningful integrity impact, but the local attack vector (AV:L) substantially constrains the exploitable population to attackers who already have device-level presence. EPSS is 0.00% at the 0th percentile - the lowest observable exploitation probability - and SSVC rates exploitation as none with automatable: no, confirming that no known active exploitation or mass-scalable attack path has been identified. KEV status is not confirmed. The CVSS 4.0 PR:N rating implies no special Android permissions are required beyond local presence, yet SSVC's automatable: no indicates this cannot be trivially scripted at scale, suggesting manual, targeted abuse. Real-world risk is concentrated in environments enforcing app installation restrictions through Samsung device MDM or parental controls; on devices without such restrictions actively configured, the exploitable impact is negligible. The intelligence tags include 'Information Disclosure,' which conflicts with the CVSS VI:H (integrity-only) rating and the description's focus on policy modification - this discrepancy is unexplained by available data and should be verified against the vendor advisory before classification decisions are made. |
| Exploit ScenarioDerived | A local attacker - either with physical access to a Samsung device or operating through a malicious application already resident on the device - submits crafted data to PackageManagerService that passes the insufficient authenticity check, allowing the restriction policy for a specific application to be modified. This enables installation of an application that would otherwise be blocked by enterprise MDM policy or parental controls. No public proof-of-concept code has been identified at time of analysis. |
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Alert meAnalysisAIv1 – Jul 24, 2026
PackageManagerService on Samsung Mobile Devices running Android 14, 15, and 16 allows local attackers without elevated privileges to bypass application installation restrictions by exploiting insufficient verification of data authenticity. The affected component fails to adequately validate the integrity of data governing app installation policies, enabling unauthorized modification of those restrictions on unpatched devices. No public exploit code has been identified and SSVC rates exploitation as none, but the impact is significant in enterprise MDM and parental-control deployments where installation restrictions are an active security control.
RemediationAI
Apply Samsung's SMR Mar-2026 Release 1 security update, which delivers the fix for Android 14, 15, and 16 per the vendor advisory at https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03. Organizations managing Samsung device fleets via MDM should prioritize update deployment on any devices where application installation restrictions are an enforced security control, as those restrictions cannot be trusted on unpatched devices. As a compensating control where patching is delayed, supplement device-level installation restrictions with server-side MDM enforcement and network-based application allowlisting, since device-side restriction integrity is compromised on vulnerable builds. Note that these compensating controls add management overhead and may affect legitimate application deployment workflows.
Affected VersionsENISA
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Technical ContextAI · show details
PackageManagerService is a core Android system component responsible for managing application lifecycle events including installation, uninstallation, and enforcement of installation access policies. Samsung's proprietary Android build extends this service with custom installation restriction mechanisms. The vulnerability - no CWE is formally assigned, though functionally analogous to CWE-345 (Insufficient Verification of Data Authenticity) - means the service does not sufficiently validate the source or integrity of data that determines whether specific applications are permitted to install. The affected CPE is cpe:2.3:a:samsung_mobile:samsung_mobile_devices:*:*:*:*:*:*:*:*, covering Samsung's full Android device lineup across Android 14, 15, and 16. The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:N/UI:N) confirms low-complexity local exploitation with no attack requirements or prerequisites beyond device access.
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Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Local vector confirmed by AV:L; PR:L chosen because device presence or an installed app context is a practical prerequisite; C:N and A:N as no confidentiality or availability impact is described.
Primary rating from Vendor (SamsungMobile).
CVSS VectorVendor: SamsungMobile
Lifecycle Timeline
2DescriptionCVE.org
Insufficient verification of data authenticity in PackageManagerService prior to SMR Mar-2026 Release 1 allows local attackers to modify the installation restriction of specific application.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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