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    CVE-2026-21002

    Improper verification of cryptographic signature in Galaxy Store prior to version 4.6.03.8 allows local attacker to install arbitrary application.

    Published:Mar 16, 2026
    Last Modified:Apr 9, 2026
    EPS:Mar 16, 2026
    EPSS Score:0.00007
    CVSS Score:5.5

    Affected Products

    Vendor
    Samsung
    Product
    Galaxy Store

    Exploits

    https://github.com/George0Papasotiriou/CVE-2026-21002-Serverless-Cold-Start-Credential-Leakage-via-Reused-tmp

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Related CVEs

    CVE-2026-21001 (CVSS 5.9) — Path traversal in Galaxy Store prior to version 4.6.03.8 allows local attacker to create file with Galaxy Stor…
    CVE-2026-21000 (CVSS 7) — Improper access control in Galaxy Store prior to version 4.6.03.8 allows local attacker to create file with Ga…
    CVE-2026-20976 (CVSS 5.1) — Improper input validation in Galaxy Store prior to version 4.6.02 allows local attacker to execute arbitrary s…
    CVE-2025-58483 (CVSS 5.9) — Improper export of android application components in Galaxy Store for Galaxy Watch prior to version 1.0.06.29 …
    CVE-2023-21483 (CVSS 6.4) — Improper Access Control vulnerability in Galaxy Store prior to version 4.5.53.6 allows local attacker to acces…
    CVE-2025-20951 (CVSS 5.1) — Improper verification of intent by broadcast receiver vulnerability in Galaxy Store prior to version 4.5.90.7 …
    CVE-2025-20895 (CVSS 3.2) — Authentication Bypass Using an Alternate Path in Galaxy Store prior to version 4.5.87.6 allows physical attack…
    CVE-2024-34601 (CVSS 5.9) — Improper verification of intent by broadcast receiver vulnerability in GalaxyStore prior to version 4.5.81.0 a…
    CVE-2024-20870 (CVSS 5.1) — Improper verification of intent by broadcast receiver vulnerability in Galaxy Store prior to version 4.5.71.8 …
    CVE-2024-20825 (CVSS 5.5) — Implicit intent hijacking vulnerability in IAP of Galaxy Store prior to version 4.5.63.6 allows local attacker…

    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