{
    "id": "CVE-2022-0847",
    "published": "2022-03-10 17:44:57",
    "last_modified": "2026-06-17 04:21:21",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-665",
    "description": "A flaw was found in the way the \"flags\" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.",
    "epss_score": "0.92795",
    "epss_percentile": "0.99827",
    "kev": 1,
    "kev_due": "2022-05-16",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:28:58",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-05-16."
    },
    "products": [
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "netapp",
            "product": "h300e"
        },
        {
            "vendor": "netapp",
            "product": "h300e_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h300s"
        },
        {
            "vendor": "netapp",
            "product": "h300s_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h410c"
        },
        {
            "vendor": "netapp",
            "product": "h410c_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h410s"
        },
        {
            "vendor": "netapp",
            "product": "h410s_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h500e"
        },
        {
            "vendor": "netapp",
            "product": "h500e_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h500s"
        },
        {
            "vendor": "netapp",
            "product": "h500s_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h700e"
        },
        {
            "vendor": "netapp",
            "product": "h700e_firmware"
        },
        {
            "vendor": "netapp",
            "product": "h700s"
        },
        {
            "vendor": "netapp",
            "product": "h700s_firmware"
        },
        {
            "vendor": "ovirt",
            "product": "ovirt-engine"
        },
        {
            "vendor": "redhat",
            "product": "codeready_linux_builder"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_ibm_z_systems"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_ibm_z_systems_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_power_little_endian"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_power_little_endian_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_real_time"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_real_time_for_nfv"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_real_time_for_nfv_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_for_real_time_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_update_services_for_sap_solutions"
        },
        {
            "vendor": "redhat",
            "product": "virtualization_host"
        },
        {
            "vendor": "siemens",
            "product": "scalance_lpe9403"
        },
        {
            "vendor": "siemens",
            "product": "scalance_lpe9403_firmware"
        },
        {
            "vendor": "sonicwall",
            "product": "sma1000"
        },
        {
            "vendor": "sonicwall",
            "product": "sma1000_firmware"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2022-0847",
        "date_added": "2022-04-25",
        "due_date": "2022-05-16",
        "vendor": "Linux",
        "product": "Kernel",
        "name": "Linux Kernel Privilege Escalation Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50808",
            "title": "Linux Kernel 5.8 < 5.16.11 - Local Privilege Escalation (DirtyPipe)",
            "date": "2022-03-08",
            "url": "https://www.exploit-db.com/exploits/50808"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2060795",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
        "https://dirtypipe.cm4all.com/",
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015",
        "https://security.netapp.com/advisory/ntap-20220325-0005/",
        "https://www.suse.com/support/kb/doc/?id=000020603",
        "http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2060795",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
        "https://dirtypipe.cm4all.com/",
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015",
        "https://security.netapp.com/advisory/ntap-20220325-0005/",
        "https://www.suse.com/support/kb/doc/?id=000020603",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0847"
    ]
}