Samsung Mobile Devices CVE-2026-21012

Q: What is the CVSS score of CVE-2026-21012?

CVE-2026-21012 has a CVSS 4.0 base score of 6.8 (Medium). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/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. EPSS exploitation probability: 0.0%.

EUVD-2026-21868 MEDIUM

2026-04-13 SamsungMobile

GHSA-ff89-7r94-6q4q

Information Disclosure Samsung Mobile Devices

6.8

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Apr 13, 2026 - 06:29 vuln.today

CVSS changed

Apr 13, 2026 - 06:22 NVD

6.8 (MEDIUM)

EUVD ID Assigned

Apr 13, 2026 - 06:15 euvd

EUVD-2026-21868

Analysis Generated

Apr 13, 2026 - 06:15 vuln.today

CVE Published

Apr 13, 2026 - 05:04 nvd

MEDIUM 6.8

DescriptionCVE.org

External control of file name in AODManager prior to SMR Apr-2026 Release 1 allows privileged local attacker to create file with system privilege.

AnalysisAI

External control of file name in Samsung AODManager prior to April 2026 SMR Release 1 allows privileged local attackers to create files with system privileges, potentially leading to privilege escalation or system compromise. The vulnerability requires high-level local privileges and affects Samsung Mobile devices through a path traversal or file name manipulation flaw in the AODManager component. No public exploit code has been identified at the time of analysis.

Technical ContextAI

AODManager is a Samsung system component responsible for managing Always-On Display functionality in Samsung Mobile devices. The vulnerability stems from improper validation of file name inputs, allowing an attacker with high-level local privileges to bypass file creation restrictions and write files with elevated system privileges. This is a classic external control of file name vulnerability (path traversal or insecure temporary file creation variant), where user-supplied or attacker-controlled input is used directly in file operations without proper sanitization. The flaw exists in the system-level service that handles display management operations, making it particularly dangerous as it operates with system-level context.

RemediationAI

Users should apply the Samsung Security Maintenance Release for April 2026 Release 1 or later, which contains the fix for the AODManager external file name control vulnerability. This update should be applied to all affected Samsung Mobile devices as soon as it becomes available. The patch can be obtained through Samsung's official security update portal at https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=04. No interim workarounds are applicable given the system-level nature of the AODManager component; patching is the primary remediation path. Users with devices not yet eligible for the April 2026 SMR should monitor Samsung's security advisory for their specific device model's update timeline.

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CVE-2026-21012 vulnerability details – vuln.today

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