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Samsung AppLock CVE-2026-21063

| EUVDEUVD-2026-55088 MEDIUM
Improper Export of Android Application Components (CWE-926)
2026-08-10 SamsungMobile GHSA-9g4f-92vv-h6jp
6.8
CVSS 4.0 · Vendor: SamsungMobile
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Severity by source

Vendor (SamsungMobile) PRIMARY
6.8 MEDIUM
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.1 MEDIUM

Physical access mandatory (AV:P), no prior privileges or user interaction required; confidentiality and integrity of app data fully compromised, availability unaffected, no scope change.

3.1 AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
4.0 AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (SamsungMobile).

CVSS VectorVendor: SamsungMobile

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Aug 10, 2026 - 09:00 vuln.today
CVE Published
Aug 10, 2026 - 07:40 cve.org
MEDIUM 6.8

DescriptionCVE.org

Improper export of android application components in AppLock prior to SMR Aug-2026 Release 1 allows physical attackers to bypass app lock function.

AnalysisAI

AppLock on Samsung Mobile Devices prior to SMR Aug-2026 Release 1 exposes improperly exported Android application components, enabling a physical attacker to bypass the app lock protection layer entirely. The flaw grants access to confidentiality- and integrity-sensitive data within locked applications without satisfying the intended authentication challenge. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Physical access to the Samsung device is the non-negotiable prerequisite (CVSS AV:P). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N scores 6.8 and accurately reflects the core constraint: physical device possession is mandatory. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the Samsung Mobile Release (SMR) August 2026 Release 1 security update, which addresses this vulnerability per the vendor advisory at https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=08. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-21063 vulnerability details – vuln.today

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