{
    "id": "CVE-2017-5398",
    "published": "2018-06-11 21:29:03",
    "last_modified": "2026-06-17 01:20:23",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-119",
    "description": "Memory safety bugs were reported in Thunderbird 45.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.",
    "epss_score": "0.03705",
    "epss_percentile": "0.89464",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-09 18:17:18",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "mozilla",
            "product": "firefox"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird_esr"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://rhn.redhat.com/errata/RHSA-2017-0459.html",
        "http://rhn.redhat.com/errata/RHSA-2017-0461.html",
        "http://rhn.redhat.com/errata/RHSA-2017-0498.html",
        "http://www.securityfocus.com/bid/96651",
        "http://www.securitytracker.com/id/1037966",
        "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1332550%2C1332597%2C1338383%2C1321612%2C1322971%2C1333568%2C1333887%2C1335450%2C1325052%2C1324379%2C1336510",
        "https://security.gentoo.org/glsa/201705-06",
        "https://security.gentoo.org/glsa/201705-07",
        "https://www.debian.org/security/2017/dsa-3805",
        "https://www.debian.org/security/2017/dsa-3832",
        "https://www.mozilla.org/security/advisories/mfsa2017-05/",
        "https://www.mozilla.org/security/advisories/mfsa2017-06/",
        "https://www.mozilla.org/security/advisories/mfsa2017-07/",
        "https://www.mozilla.org/security/advisories/mfsa2017-09/",
        "http://rhn.redhat.com/errata/RHSA-2017-0459.html",
        "http://rhn.redhat.com/errata/RHSA-2017-0461.html",
        "http://rhn.redhat.com/errata/RHSA-2017-0498.html",
        "http://www.securityfocus.com/bid/96651",
        "http://www.securitytracker.com/id/1037966",
        "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1332550%2C1332597%2C1338383%2C1321612%2C1322971%2C1333568%2C1333887%2C1335450%2C1325052%2C1324379%2C1336510",
        "https://security.gentoo.org/glsa/201705-06",
        "https://security.gentoo.org/glsa/201705-07",
        "https://www.debian.org/security/2017/dsa-3805",
        "https://www.debian.org/security/2017/dsa-3832",
        "https://www.mozilla.org/security/advisories/mfsa2017-05/"
    ]
}