{"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"}}}}

{}

{"affected": [{"affectedData": [{"product": "libiec61850", "vendor": "mz-automation", "versions": [{"status": "affected", "version": ">= 1.6.1, < 1.6.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-57446", "lastModified": "2026-10-16T20:04:29.760", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-16T16:18:44.207", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/mz-automation/libiec61850/commit/d86b4a9c7a903641819235e1678b18901518f3cd"}, {"source": "security-advisories@github.com", "url": "https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/mz-automation/libiec61850/security/advisories/GHSA-cxgr-7v9h-fj9p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}, {"lang": "en", "value": "CWE-664"}, {"lang": "en", "value": "CWE-672"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-10-16T18:30:14.699843+00:00", "updated": "2026-10-16T18:30:14.699848+00:00", "vendors": []}