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    CVE-2026-20978

    Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application.

    Published:Feb 4, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 4, 2026
    EPSS Score:0.00007
    CVSS Score:6.1

    Affected Products

    Vendor
    Samsung
    Product
    Android
    Vendor
    Samsung
    Product
    Mobile Devices

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

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    CVE-2026-21102 (CVSS 9.3) — Use after free in DualDAR prior to SMR Sep-2026 Release 1 allows local privileged attackers to execute arbitra…
    CVE-2026-21101 (CVSS 8.4) — Improper input validation in DualDAR driver prior to SMR Sep-2026 Release 1 allows local privileged attackers …
    CVE-2026-21100 (CVSS 6.9) — Improper access control in SystemUI prior to SMR Sep-2026 Release 1 allows local attackers to launch arbitrary…
    CVE-2026-21099 (CVSS 5.1) — Improper access control in SettingsProvider prior to SMR Sep-2026 Release 1 allows local attackers to access s…
    CVE-2026-21097 (CVSS 4.6) — Improper authentication in ActivityTaskManagerService prior to SMR Sep-2026 Release 1 allows local privileged …
    CVE-2026-21096 (CVSS 9.2) — Heap-based buffer overflow in JPEG decoder of libimagecodec.quram.so prior to SMR Sep-2026 Release 1 allows re…
    CVE-2026-21095 (CVSS 9.2) — Heap-based buffer overflow in DNG decoder of libimagecodec.quram.so prior to SMR Sep-2026 Release 1 allows rem…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High