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    CVE-2025-2233

    Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Samsung SmartThings. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Hub Local API service, which listens on TCP port 8766 by default. The issue results from the lack of proper verification of a cryptographic signature. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-25615.

    Published:Mar 11, 2025
    Last Modified:Feb 26, 2026
    EPS:Mar 11, 2025
    EPSS Score:0.00074
    CVSS Score:8.8

    Affected Products

    Vendor
    Samsung
    Product
    Smartthings

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

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

    Related CVEs

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    CVE-2024-34596 (CVSS 5.9) — Improper authentication in SmartThings prior to version 1.8.17 allows remote attackers to bypass the expiratio…
    CVE-2024-20852 (CVSS 5.9) — Improper verification of intent by broadcast receiver vulnerability in SmartThings prior to version 1.8.13.22 …
    CVE-2022-39867 (CVSS 4) — Improper access control vulnerability in cloudNotificationManager.java SmartThings prior to version 1.7.89.0 a…
    CVE-2022-39864 (CVSS 3.3) — Improper access control vulnerability in WifiSetupLaunchHelper in SmartThings prior to version 1.7.89.25 allow…
    CVE-2022-39865 (CVSS 4) — Improper access control vulnerability in ContentsSharingActivity.java SmartThings prior to version 1.7.89.0 al…
    CVE-2022-39866 (CVSS 4) — Improper access control vulnerability in RegisteredEventMediator.kt SmartThings prior to version 1.7.89.0 allo…
    CVE-2022-39868 (CVSS 4) — Improper access control vulnerability in GedSamsungAccount.kt SmartThings prior to version 1.7.89.0 allows att…
    CVE-2022-39869 (CVSS 4) — Improper access control vulnerability in cloudNotificationManager.java SmartThings prior to version 1.7.89.0 a…

    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