Grandstream GXP1600 VoIP Phones – Unauthenticated stack buffer overflow_CVE-2026-2329

{
    "lastseen": "",
    "description": "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": "2026-02-18T14:08:09.272Z",
    "modified": "2026-02-18T14:50:51.252Z",
    "type": "cve",
    "title": "Grandstream GXP1600 VoIP Phones - Unauthenticated stack buffer overflow",
    "source": "rapid7",
    "references": "https://www.rapid7.com/blog/post/ve-cve-2026-2329-critical-unauthenticated-stack-buffer-overflow-in-grandstream-gxp1600-voip-phones-fixed\nhttps://psirt.grandstream.com/\nhttps://firmware.grandstream.com/Release_Note_GXP16xx_1.0.7.81.pdf\nhttps://github.com/rapid7/metasploit-framework/pull/20983",
    "id": "CVE-2026-2329",
    "bulletinFamily": "",
    "cwe": [
        "CWE-121"
    ],
    "cvelist": null,
    "sourceData": "Grandstream GXP1610 0\nGrandstream GXP1615 0\nGrandstream GXP1620 0\nGrandstream GXP1625 0\nGrandstream GXP1628 0\nGrandstream GXP1630 0",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "GXP1610",
    "version": "0",
    "vendor": "Grandstream",
    "ai_description": "Unauthenticated stack-based buffer overflow vulnerability in Grandstream GXP1600 VoIP Phones allowing remote code execution (RCE) with root privileges",
    "ai_severity": "Critical",
    "ai_vendor": "Grandstream",
    "ai_product": "GXP1600 VoIP Phones",
    "ai_version": "GXP1610, GXP1615, GXP1620, GXP1625, GXP1628, GXP1630",
    "ai_score": 9.3
}