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Samsung Mobile Devices EUVDEUVD-2026-74627

| CVE-2026-21086 MEDIUM
Improper Input Validation (CWE-20)
2026-09-09 SamsungMobile GHSA-r5j2-f8hg-95m3
Information Disclosure Samsung Mobile Devices Samsung Mobile
4.8
CVSS 4.0 · Vendor: SamsungMobile
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Severity by source

Vendor (SamsungMobile) PRIMARY
4.8 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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
3.3 LOW

Local low-privilege access required; impact is read-only proxy configuration disclosure with no confirmed integrity or availability consequence.

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

Primary rating from Vendor (SamsungMobile).

CVSS VectorVendor: SamsungMobile

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

Lifecycle Timeline

2
Analysis Generated
Sep 09, 2026 - 08:43 vuln.today
CVE Published
Sep 09, 2026 - 04:47 cve.org
MEDIUM 4.8

DescriptionCVE.org

Improper authorization in ProxyHandler prior to SMR Aug-2026 Release 1 allows local attackers to access proxy configuration.

AnalysisAI

Improper authorization in the ProxyHandler component of Samsung Android devices allows a locally-executing, low-privileged attacker to read proxy configuration without proper access controls. Devices running Android 14 through 17 are affected and patched in the SMR September 2026 release cycle. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires local execution access on the target Samsung device with at least low-privilege level - a normal user-installed application running under a standard Android user context suffices. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L) correctly scopes this as a local, low-complexity issue. … 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 Monthly Security Release for September 2026 (SMR Sep-2026 Release 1), which includes the ProxyHandler fix for Android 14, 15, 16, and 17. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-74627 vulnerability details – vuln.today
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