{
    "id": "CVE-2022-30525",
    "published": "2022-05-12 14:15:07",
    "last_modified": "2026-06-17 04:43:46",
    "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-78",
    "description": "A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.",
    "epss_score": "0.99944",
    "epss_percentile": "0.99973",
    "kev": 1,
    "kev_due": "2022-06-06",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:29:30",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-06-06."
    },
    "products": [
        {
            "vendor": "zyxel",
            "product": "atp100"
        },
        {
            "vendor": "zyxel",
            "product": "atp100_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "atp100w"
        },
        {
            "vendor": "zyxel",
            "product": "atp100w_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "atp200"
        },
        {
            "vendor": "zyxel",
            "product": "atp200_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "atp500"
        },
        {
            "vendor": "zyxel",
            "product": "atp500_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "atp700"
        },
        {
            "vendor": "zyxel",
            "product": "atp700_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "atp800"
        },
        {
            "vendor": "zyxel",
            "product": "atp800_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_100w"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_100w_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_200"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_200_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_500"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_500_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_50w"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_50w_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_700"
        },
        {
            "vendor": "zyxel",
            "product": "usg_flex_700_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "usg20w-vpn"
        },
        {
            "vendor": "zyxel",
            "product": "usg20w-vpn_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "vpn100"
        },
        {
            "vendor": "zyxel",
            "product": "vpn100_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "vpn1000"
        },
        {
            "vendor": "zyxel",
            "product": "vpn1000_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "vpn300"
        },
        {
            "vendor": "zyxel",
            "product": "vpn300_firmware"
        },
        {
            "vendor": "zyxel",
            "product": "vpn50"
        },
        {
            "vendor": "zyxel",
            "product": "vpn50_firmware"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2022-30525",
        "date_added": "2022-05-16",
        "due_date": "2022-06-06",
        "vendor": "Zyxel",
        "product": "Multiple Firewalls",
        "name": "Zyxel Multiple Firewalls OS Command Injection Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50946",
            "title": "Zyxel USG FLEX 5.21 - OS Command Injection",
            "date": "2022-06-03",
            "url": "https://www.exploit-db.com/exploits/50946"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html",
        "http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html",
        "http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html",
        "http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html",
        "https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml",
        "http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html",
        "http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html",
        "http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html",
        "http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html",
        "https://www.zyxel.com/support/Zyxel-security-advisory-for-OS-command-injection-vulnerability-of-firewalls.shtml",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-30525"
    ]
}