{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2020-29583",
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "dateUpdated": "2025-10-21T23:35:31.245Z",
        "dateReserved": "2020-12-06T00:00:00.000Z",
        "datePublished": "2020-12-22T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
                "shortName": "mitre",
                "dateUpdated": "2023-10-28T00:43:07.540Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges."
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "n/a",
                    "versions": [
                        {
                            "version": "n/a",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.zyxel.com/support/security_advisories.shtml"
                },
                {
                    "url": "http://ftp.zyxel.com/USG40/firmware/USG40_4.60%28AALA.1%29C0_2.pdf"
                },
                {
                    "url": "https://businessforum.zyxel.com/discussion/5254/whats-new-for-zld4-60-patch-1-available-on-dec-15"
                },
                {
                    "url": "https://businessforum.zyxel.com/discussion/5252/zld-v4-60-revoke-and-wk48-firmware-release"
                },
                {
                    "url": "https://www.eyecontrol.nl/blog/undocumented-user-account-in-zyxel-products.html"
                },
                {
                    "url": "https://www.zyxel.com/support/CVE-2020-29583.shtml"
                },
                {
                    "url": "https://www.secpod.com/blog/a-secret-zyxel-firewall-and-ap-controllers-could-allow-for-administrative-access-cve-2020-29583/"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "text",
                            "lang": "en",
                            "description": "n/a"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T16:55:10.633Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://www.zyxel.com/support/security_advisories.shtml",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "http://ftp.zyxel.com/USG40/firmware/USG40_4.60%28AALA.1%29C0_2.pdf",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://businessforum.zyxel.com/discussion/5254/whats-new-for-zld4-60-patch-1-available-on-dec-15",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://businessforum.zyxel.com/discussion/5252/zld-v4-60-revoke-and-wk48-firmware-release",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.eyecontrol.nl/blog/undocumented-user-account-in-zyxel-products.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.zyxel.com/support/CVE-2020-29583.shtml",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.secpod.com/blog/a-secret-zyxel-firewall-and-ap-controllers-could-allow-for-administrative-access-cve-2020-29583/",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 9.8,
                            "attackVector": "NETWORK",
                            "baseSeverity": "CRITICAL",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2020-29583",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "active"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2025-02-10T22:11:59.767015Z"
                            }
                        }
                    },
                    {
                        "other": {
                            "type": "kev",
                            "content": {
                                "dateAdded": "2021-11-03",
                                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-29583"
                            }
                        }
                    }
                ],
                "references": [
                    {
                        "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-29583",
                        "tags": [
                            "government-resource"
                        ]
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-522",
                                "description": "CWE-522 Insufficiently Protected Credentials"
                            }
                        ]
                    }
                ],
                "timeline": [
                    {
                        "time": "2021-11-03T00:00:00.000Z",
                        "lang": "en",
                        "value": "CVE-2020-29583 added to CISA KEV"
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-21T23:35:31.245Z"
                }
            }
        ]
    }
}