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    CVE-2026-2329

    An unauthenticated stack-based buffer overflow vulnerability exists in the HTTP API endpoint /cgi-bin/api.values.get. A remote attacker can leverage this vulnerability to achieve unauthenticated remote code execution (RCE) with root privileges on a target device. The vulnerability affects all six device models in the series: GXP1610, GXP1615, GXP1620, GXP1625, GXP1628, and GXP1630.

    Published:Feb 18, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 18, 2026
    EPSS Score:0.34822
    CVSS Score:9.8

    Affected Products

    Vendor
    Grandstream
    Product
    Gxp1610
    Vendor
    Grandstream
    Product
    Gxp1610 Firmware
    Vendor
    Grandstream
    Product
    Gxp1615
    Vendor
    Grandstream
    Product
    Gxp1615 Firmware
    Vendor
    Grandstream
    Product
    Gxp1620
    Vendor
    Grandstream
    Product
    Gxp1620 Firmware
    Vendor
    Grandstream
    Product
    Gxp1625
    Vendor
    Grandstream
    Product
    Gxp1625 Firmware
    Vendor
    Grandstream
    Product
    Gxp1628
    Vendor
    Grandstream
    Product
    Gxp1628 Firmware
    Vendor
    Grandstream
    Product
    Gxp1630
    Vendor
    Grandstream
    Product
    Gxp1630 Firmware

    Exploits

    https://github.com/VivianUba/grandstream-cve-2026-2329-analysis

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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