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    4 vulnerabilities by Grandstream Networks

    CVE-2026-93338 (GCVE-0-2026-93338)

    Vulnerability from nvd – Published: 2026-09-18 16:21 – Updated: 2026-09-18 17:24
    VLAI
    Title
    Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String
    Summary
    Grandstream GWN7660ELR before firmware version 1.0.27.6 contains an information disclosure vulnerability that allows unauthenticated remote attackers to obtain sensitive system information by querying the SNMP v2c service configured with the default community string 'public'. Attackers can query standard MIBs over the SNMP port to retrieve operating system and kernel version, running process names and command-line arguments, network interface configuration, routing table entries, ARP table mappings, active TCP connection details, and file system paths, enabling detailed reconnaissance of the device and adjacent network infrastructure.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-18 17:24 UTC
    CWE
    • CWE-1188 - Initialization of a Resource with an Insecure Default
    Impacted products
    Vendor Product Version
    Grandstream Networks GWN7660ELR Affected: 0 , < 1.0.27.6 (custom)
    Create a notification for this product.
    Date Public
    2026-07-13 00:00
    Show details on NVD website

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    CVE-2025-40979 (GCVE-0-2025-40979)

    Vulnerability from nvd – Published: 2025-09-10 11:35 – Updated: 2025-09-10 20:23
    VLAI
    Title
    DLL search order hijack in Wave by Grandstream Networks
    Summary
    DLL search order hijacking vulnerability in the wave.exe executable for Windows 11, version 1.27.8. Exploitation of this vulnerability could allow attackers with local access to execute arbitrary code by placing an arbitrary file in the 'C:\Users<user>\AppData\Local\Temp' directory, which could lead to arbitrary code execution and persistence. This vulnerability is only replicable in versions of Windows 11 and does not affect earlier versions.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-09-10 20:23 UTC
    CWE
    • CWE-427 - Uncontrolled Search Path Element
    Impacted products
    Vendor Product Version
    Grandstream Networks Wave Affected: 0 , < 1.27.11 (custom)
    Create a notification for this product.
    Date Public
    2025-09-10 10:00
    Show details on NVD website

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    CVE-2026-93338 (GCVE-0-2026-93338)

    Vulnerability from cvelistv5 – Published: 2026-09-18 16:21 – Updated: 2026-09-18 17:24
    VLAI
    Title
    Grandstream GWN7660ELR < 1.0.27.6 Information Disclosure via SNMP Default Community String
    Summary
    Grandstream GWN7660ELR before firmware version 1.0.27.6 contains an information disclosure vulnerability that allows unauthenticated remote attackers to obtain sensitive system information by querying the SNMP v2c service configured with the default community string 'public'. Attackers can query standard MIBs over the SNMP port to retrieve operating system and kernel version, running process names and command-line arguments, network interface configuration, routing table entries, ARP table mappings, active TCP connection details, and file system paths, enabling detailed reconnaissance of the device and adjacent network infrastructure.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-18 17:24 UTC
    CWE
    • CWE-1188 - Initialization of a Resource with an Insecure Default
    Impacted products
    Vendor Product Version
    Grandstream Networks GWN7660ELR Affected: 0 , < 1.0.27.6 (custom)
    Create a notification for this product.
    Date Public
    2026-07-13 00:00
    Show details on NVD website

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    CVE-2025-40979 (GCVE-0-2025-40979)

    Vulnerability from cvelistv5 – Published: 2025-09-10 11:35 – Updated: 2025-09-10 20:23
    VLAI
    Title
    DLL search order hijack in Wave by Grandstream Networks
    Summary
    DLL search order hijacking vulnerability in the wave.exe executable for Windows 11, version 1.27.8. Exploitation of this vulnerability could allow attackers with local access to execute arbitrary code by placing an arbitrary file in the 'C:\Users<user>\AppData\Local\Temp' directory, which could lead to arbitrary code execution and persistence. This vulnerability is only replicable in versions of Windows 11 and does not affect earlier versions.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-09-10 20:23 UTC
    CWE
    • CWE-427 - Uncontrolled Search Path Element
    Impacted products
    Vendor Product Version
    Grandstream Networks Wave Affected: 0 , < 1.27.11 (custom)
    Create a notification for this product.
    Date Public
    2025-09-10 10:00
    Show details on NVD website

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