{
    "id": "CVE-2021-33393",
    "published": "2021-06-09 22:15:08",
    "last_modified": "2026-06-17 03:54:31",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": null,
    "description": "lfs/backup in IPFire 2.25-core155 does not ensure that /var/ipfire/backup/bin/backup.pl is owned by the root account. It might be owned by an unprivileged account, which could potentially be used to install a Trojan horse backup.pl script that is later executed by root. Similar problems with the ownership/permissions of other files may be present as well.",
    "epss_score": "0.59616",
    "epss_percentile": "0.99099",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:27:39",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "ipfire",
            "product": "ipfire"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "49869",
            "title": "IPFire 2.25 - Remote Code Execution (Authenticated)",
            "date": "2021-05-17",
            "url": "https://www.exploit-db.com/exploits/49869"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.html",
        "https://github.com/MucahitSaratar/ipfire-2-25-auth-rce",
        "https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b217f6",
        "https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-05-17",
        "http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.html",
        "https://github.com/MucahitSaratar/ipfire-2-25-auth-rce",
        "https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b217f6",
        "https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-05-17"
    ]
}