{"schema":"threatline.record/2","record":{"id":"CVE-2026-68908","aliases":["GHSA-7qg8-hm25-rv5v"],"summary":"libIEC61850: Oversized RptID can trigger invalid free of a stack-backed visible string in the report send path","details":"libIEC61850 is an open-source implementation of IEC 61850 client and server protocols including MMS, GOOSE, Sampled Values, and R-Session. Prior to 1.6.2, Reporting_RCBWriteAccessHandler accepts an RptID longer than 129 bytes in the report-control-block write path. When GI later causes sendNextReportEntrySegment to serialize the report, the function wraps rptIdBuf[130] as a temporary MmsValue and passes it to MmsValue_setVisibleString. The setter's resize path frees the stack-backed buffer, allowing a remote client to trigger an invalid free and server crash by writing the oversized RptID and then generating a report. This issue is fixed in version 1.6.2.","categories":["Unclassified"],"product":"libiec61850","vendor":"mz-automation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-68908","source_modified_at":"2026-10-16T16:51:44.888Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libiec61850","vendor":"mz-automation","versions":[{"status":"affected","version":"< 1.6.2"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v","source_modified_at":"2026-08-03T12:34:17Z","fetched_at":"2026-10-23T21:14:28.314422Z","package":{"ecosystem":"","name":"libiec61850"},"range":"= < 1.6.1"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v","source_modified_at":"2026-08-03T12:34:17Z","fetched_at":"2026-10-23T21:14:28.314422Z","package":{"ecosystem":"","name":"libiec61850"},"version":"1.6.2"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00451,"percentile":0.38194,"score_date":"2026-10-23"},"published_at":"2026-10-16T15:47:25.012Z","modified_at":"2026-10-16T16:51:44.888Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-68908","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T16:51:44.888Z"},{"source":"GitHub Advisory Database","url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v","fetched_at":"2026-10-23T21:14:28.314422Z","source_modified_at":"2026-08-03T12:34:17Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-68908","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/mz-automation/libiec61850/commit/5b2a69f44256b8548927d8afdd7ac5f5381abe1e","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-16T16:51:16.889294Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-16T16:51:44.888Z","content_hash":"57a9e04a3055c54a8a21fa1b952a29007caee25145472504c5fd341b40520374"}}