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    3 vulnerabilities by Morse Micro

    CVE-2026-7763 (GCVE-0-2026-7763)

    Vulnerability from cvelistv5 – Published: 2026-06-05 01:39 – Updated: 2026-06-05 20:20
    VLAI
    Title
    Heap buffer overflow in morse.ko TIM IE processing
    Summary
    A heap-based buffer overflow vulnerability in the morse.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.13 allows an unauthenticated attacker within radio range to cause a Denial of Service (kernel panic) or potentially achieve Remote Code Execution via a crafted 802.11ah beacon frame containing a malformed Traffic Indication Map (TIM) Information Element. The function morse_page_slicing_process_tim_element() in page_slicing.c derives the TIM bitmap length directly from a received IE field without validating it against the fixed-size destination buffer before passing it to memset and memcpy operations, allowing up to 252 bytes of attacker-controlled data to be written beyond the buffer boundary. Because beacons are broadcast frames processed during passive scanning, no authentication, association, or user interaction is required.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Morse Micro HaLowLink 2 Affected: 0 , < 2.11.13 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-7762 (GCVE-0-2026-7762)

    Vulnerability from cvelistv5 – Published: 2026-06-05 01:36 – Updated: 2026-06-05 20:19
    VLAI
    Title
    Heap buffer overflow in dot11ah.ko S1G Capabilities IE processing
    Summary
    A heap-based buffer overflow vulnerability in the dot11ah.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.13 allows an unauthenticated attacker within radio range to cause a Denial of Service (kernel panic) or potentially achieve Remote Code Execution via a crafted 802.11ah beacon or probe response frame containing a malformed S1G Capabilities Information Element (IE element ID 0xD9). The function morse_dot11ah_find_s1g_caps_for_bssid() uses the IE length field directly as the size argument to memcpy without validating it against the 15-byte destination buffer. An attacker can supply up to 255 bytes, causing an overflow of up to 240 bytes of attacker-controlled data into adjacent kernel heap memory. The vulnerability is triggerable during normal scanning without authentication, association, or user interaction.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Morse Micro HaLowLink 2 Affected: 0 , < 2.11.13 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-7764 (GCVE-0-2026-7764)

    Vulnerability from cvelistv5 – Published: 2026-06-04 00:17 – Updated: 2026-06-04 13:01
    VLAI
    Title
    Out-of-bounds read in morse.ko Vendor IE processing
    Summary
    An out-of-bounds read vulnerability in the morse.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.12 allows an unauthenticated attacker within radio range to disclose a small amount of kernel heap memory or cause a Denial of Service (kernel oops/panic) via a crafted 802.11ah beacon or probe response frame containing a malformed Vendor Information Element. The function morse_vendor_find_vendor_ie() does not validate the IE length against the expected structure size before its result is passed to morse_vendor_rx_caps_ops_ie() and morse_vendor_fill_sta_vendor_info(), which read at fixed offsets into the IE data. Because the length check only requires the IE to be longer than 3 bytes, an attacker can supply an undersized IE, causing a heap out-of-bounds read of up to 9 bytes. No authentication, association, or user interaction is required.
    Severity
    6.8 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Morse Micro HaLowLink 2 Affected: 0 , < 2.11.12 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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