{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-67873", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-08-05T23:14:56.253Z", "dateReserved": "2026-07-30T00:00:00.000Z", "datePublished": "2026-08-05T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-08-05T23:14:56.253Z"}, "descriptions": [{"lang": "en", "value": "A heap-based buffer overflow exists in lib60870-C 2.4.0 in the server-side FileSegment ASDU encoding path. The issue occurs because FileSegment_encode() validates only the standalone segment length via FileSegment_GetMaxDataSize() and does not verify the residual capacity of the current ASDU frame before encoding object fields and segment data"}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/mz-automation/lib60870"}, {"url": "https://github.com/mz-automation/lib60870/releases/tag/v2.4.0"}, {"url": "https://github.com/mz-automation/lib60870/blob/master/user_guide.adoc"}, {"url": "https://github.com/mz-automation/lib60870/issues/201"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{}

{}

{"created": "2026-08-06T00:30:03.927945+00:00", "title": "Heap-based Buffer Overflow in lib60870-C 2.4.0 ASDU Encoding Path", "updated": "2026-08-06T00:30:03.927951+00:00", "vendors": [], "weaknesses": ["CWE-122"]}