{
    "id": "CVE-2023-5217",
    "published": "2023-09-28 16:15:10",
    "last_modified": "2026-06-17 06:48:06",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "cwe": "CWE-787",
    "description": "Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
    "epss_score": "0.49013",
    "epss_percentile": "0.98844",
    "kev": 1,
    "kev_due": "2023-10-23",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:32:45",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2023-10-23."
    },
    "products": [
        {
            "vendor": "apple",
            "product": "ipados"
        },
        {
            "vendor": "apple",
            "product": "iphone_os"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "google",
            "product": "chrome"
        },
        {
            "vendor": "microsoft",
            "product": "edge"
        },
        {
            "vendor": "microsoft",
            "product": "edge_chromium"
        },
        {
            "vendor": "mozilla",
            "product": "firefox"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "vendor": "webmproject",
            "product": "libvpx"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2023-5217",
        "date_added": "2023-10-02",
        "due_date": "2023-10-23",
        "vendor": "Google",
        "product": "Chromium libvpx",
        "name": "Google Chromium libvpx Heap Buffer Overflow Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "http://seclists.org/fulldisclosure/2023/Oct/12",
        "http://seclists.org/fulldisclosure/2023/Oct/16",
        "http://www.openwall.com/lists/oss-security/2023/09/28/5",
        "http://www.openwall.com/lists/oss-security/2023/09/28/6",
        "http://www.openwall.com/lists/oss-security/2023/09/29/1",
        "http://www.openwall.com/lists/oss-security/2023/09/29/11",
        "http://www.openwall.com/lists/oss-security/2023/09/29/12",
        "http://www.openwall.com/lists/oss-security/2023/09/29/14",
        "http://www.openwall.com/lists/oss-security/2023/09/29/2",
        "http://www.openwall.com/lists/oss-security/2023/09/29/7",
        "http://www.openwall.com/lists/oss-security/2023/09/29/9",
        "http://www.openwall.com/lists/oss-security/2023/09/30/1",
        "http://www.openwall.com/lists/oss-security/2023/09/30/2",
        "http://www.openwall.com/lists/oss-security/2023/09/30/3",
        "http://www.openwall.com/lists/oss-security/2023/09/30/4",
        "http://www.openwall.com/lists/oss-security/2023/09/30/5",
        "http://www.openwall.com/lists/oss-security/2023/10/01/1",
        "http://www.openwall.com/lists/oss-security/2023/10/01/2",
        "http://www.openwall.com/lists/oss-security/2023/10/01/5",
        "http://www.openwall.com/lists/oss-security/2023/10/02/6",
        "http://www.openwall.com/lists/oss-security/2023/10/03/11",
        "https://arstechnica.com/security/2023/09/new-0-day-in-chrome-and-firefox-is-likely-to-plague-other-software/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2241191",
        "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html",
        "https://crbug.com/1486441"
    ]
}