{
    "id": "CVE-2021-38173",
    "published": "2021-08-07 19:15:06",
    "last_modified": "2026-06-17 04:01:41",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-77",
    "description": "Btrbk before 0.31.2 allows command execution because of the mishandling of remote hosts filtering SSH commands using ssh_filter_btrbk.sh in authorized_keys.",
    "epss_score": "0.03155",
    "epss_percentile": "0.87607",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-10 18:17:26",
    "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": "digint",
            "product": "btrbk"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/digint/btrbk/blob/master/ChangeLog",
        "https://github.com/digint/btrbk/commit/58212de771c381cd4fa05625927080bf264e9584",
        "https://lists.debian.org/debian-lts-announce/2021/09/msg00002.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP2T32JMENJFRP2HWXR7FTTZVRTTPECL/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM7GLTUN5YS4KE2RNBX732EAMVVGNEX3/",
        "https://github.com/digint/btrbk/blob/master/ChangeLog",
        "https://github.com/digint/btrbk/commit/58212de771c381cd4fa05625927080bf264e9584",
        "https://lists.debian.org/debian-lts-announce/2021/09/msg00002.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP2T32JMENJFRP2HWXR7FTTZVRTTPECL/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM7GLTUN5YS4KE2RNBX732EAMVVGNEX3/"
    ]
}