{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-57446",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-24T13:21:20.730Z",
        "datePublished": "2026-10-16T15:46:33.549Z",
        "dateUpdated": "2026-10-16T15:46:33.549Z"
    },
    "containers": {
        "cna": {
            "title": "libIEC61850: Server-side double free in MMS ObtainFile task reuse due to stale FILE* handle",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-415",
                            "lang": "en",
                            "description": "CWE-415: Double Free",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-664",
                            "lang": "en",
                            "description": "CWE-664: Improper Control of a Resource Through its Lifetime",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-672",
                            "lang": "en",
                            "description": "CWE-672: Operation on a Resource after Expiration or Release",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/mz-automation/libiec61850/security/advisories/GHSA-cxgr-7v9h-fj9p",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/mz-automation/libiec61850/security/advisories/GHSA-cxgr-7v9h-fj9p"
                },
                {
                    "name": "https://github.com/mz-automation/libiec61850/commit/d86b4a9c7a903641819235e1678b18901518f3cd",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mz-automation/libiec61850/commit/d86b4a9c7a903641819235e1678b18901518f3cd"
                },
                {
                    "name": "https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2"
                }
            ],
            "affected": [
                {
                    "vendor": "mz-automation",
                    "product": "libiec61850",
                    "versions": [
                        {
                            "version": ">= 1.6.1, < 1.6.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-16T15:46:33.549Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "libIEC61850 is an open-source implementation of IEC 61850 client and server protocols including MMS, GOOSE, Sampled Values, and R-Session. From 1.6.1 until 1.6.2, a successful MMS ObtainFile operation closes MmsObtainFileTask::fileHandle but leaves the stale non-NULL value in a task marked MMS_FILE_UPLOAD_STATE_NOT_USED. If a later ObtainFile request reuses that task and destination creation fails, MMS_FILE_UPLOAD_STATE_SEND_OBTAIN_FILE_ERROR_DESTINATION cleanup closes the stale FILE object again. Servers with the MMS file service and ObtainFile enabled can therefore be crashed remotely by the success-then-failure request sequence. This issue is fixed in version 1.6.2."
                }
            ],
            "source": {
                "advisory": "GHSA-cxgr-7v9h-fj9p",
                "discovery": "UNKNOWN"
            }
        }
    }
}