{"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":"2026-10-28T18:23:51.341Z"},"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"}},"adp":[{"references":[{"url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-cxgr-7v9h-fj9p","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-28T18:23:43.634635Z","id":"CVE-2026-57446","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-28T18:23:51.341Z"}}]}}