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    2 vulnerabilities by TCH

    CVE-2026-89034 (GCVE-0-2026-89034)

    Vulnerability from nvd – Published: 2026-09-16 21:43 – Updated: 2026-09-19 02:00
    VLAI
    Title
    TCH QRing R20_B006 Unauthenticated BLE Access
    Summary
    TCH QRing smart ring model R20_B006 running firmware RT09R20_1.00.00_250318 contains an unauthenticated Bluetooth Low Energy access vulnerability that allows any nearby attacker to connect to the device without pairing, authentication, or user approval by exploiting the exposed Nordic UART Service which enforces no client authentication or command authorization. Attackers within Bluetooth Low Energy range can connect directly to the ring, bypassing the official application and cloud authentication, to read battery levels, activate live heart rate monitoring, and retrieve stored historical heart rate and blood oxygen records.
    Severity
    7.1 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-19 01:59 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    References
    Impacted products
    Vendor Product Version
    TCH QRing Affected: RT09R20_1.00.00_250318 (custom)
    		Create a notification for this product.
    Date Public
    2026-05-19 00:00
    Credits
    Yehia Elghaly (Mrvar0x)
    Show details on NVD website
    To clipboard 

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    CVE-2026-89034 (GCVE-0-2026-89034)

    Vulnerability from cvelistv5 – Published: 2026-09-16 21:43 – Updated: 2026-09-19 02:00
    VLAI
    Title
    TCH QRing R20_B006 Unauthenticated BLE Access
    Summary
    TCH QRing smart ring model R20_B006 running firmware RT09R20_1.00.00_250318 contains an unauthenticated Bluetooth Low Energy access vulnerability that allows any nearby attacker to connect to the device without pairing, authentication, or user approval by exploiting the exposed Nordic UART Service which enforces no client authentication or command authorization. Attackers within Bluetooth Low Energy range can connect directly to the ring, bypassing the official application and cloud authentication, to read battery levels, activate live heart rate monitoring, and retrieve stored historical heart rate and blood oxygen records.
    Severity
    7.1 (High)
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-19 01:59 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    References
    Impacted products
    Vendor Product Version
    TCH QRing Affected: RT09R20_1.00.00_250318 (custom)
    		Create a notification for this product.
    Date Public
    2026-05-19 00:00
    Credits
    Yehia Elghaly (Mrvar0x)
    Show details on NVD website
    To clipboard 

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