{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-3987",
        "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
        "state": "PUBLISHED",
        "assignerShortName": "WatchGuard",
        "dateReserved": "2026-03-11T15:01:46.222Z",
        "datePublished": "2026-04-01T21:32:30.426Z",
        "dateUpdated": "2026-08-10T16:46:12.527Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
                "shortName": "WatchGuard",
                "dateUpdated": "2026-08-10T16:46:12.527Z"
            },
            "title": "WatchGuard Firebox Arbitrary File Write vis Path Traversal in Fireware Web UI",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process."
                }
            ],
            "affected": [
                {
                    "vendor": "WatchGuard",
                    "product": "Fireware OS",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2025.1",
                            "versionType": "custom",
                            "lessThan": "2026.2"
                        },
                        {
                            "status": "affected",
                            "version": "12.6.1",
                            "versionType": "custom",
                            "lessThan": "12.12"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "references": [
                {
                    "url": "https://psirt.watchguard.com/CVE-2026-3987",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00009",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "operator": "OR",
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2025.1",
                                    "versionEndExcluding": "2026.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "12.6.1",
                                    "versionEndExcluding": "12.12"
                                }
                            ]
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "baseScore": 8.6,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-22",
                            "type": "CWE",
                            "cweId": "CWE-22"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "btaol",
                    "type": "finder"
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Fireware OS 2026.2, Fireware OS 12.12"
                }
            ],
            "exploits": [
                {
                    "lang": "en",
                    "value": "WatchGuard is not aware of any exploitation of this issue in the wild."
                }
            ],
            "datePublic": "2026-04-01T21:32:30.426Z"
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-02T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-3987"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-03T03:55:30.681Z"
                }
            }
        ]
    }
}