{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.6.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f0f797bf955da763353f7081c892a1ff6b55e5a1"
            }
          ],
          "repo": "https://github.com/mz-automation/libiec61850",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7qg8-hm25-rv5v"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-590",
      "CWE-664",
      "CWE-763"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68908.json"
  },
  "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.",
  "id": "CVE-2026-68908",
  "modified": "2026-10-17T02:31:03.388553186Z",
  "published": "2026-10-16T15:47:25.012Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68908.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mz-automation/libiec61850/commit/5b2a69f44256b8548927d8afdd7ac5f5381abe1e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mz-automation/libiec61850/security/advisories/GHSA-7qg8-hm25-rv5v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68908"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libIEC61850: Oversized RptID can trigger invalid free of a stack-backed visible string in the report send path"
}