{"id":"CVE-2018-18834","aliases":["EUVD-2018-10548","GHSA-5qrf-j6wf-x965"],"status":"published","title":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in...","description":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02116,"percentile":0.81957,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2018-10-30T06:00:00Z","modified":"2026-10-20T10:49:53Z","products":[{"vendor":"mz-automation","product":"libiec61850"}],"references":[{"url":"https://github.com/fouzhe/security/tree/master/libiec61850","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/mz-automation/libiec61850/issues/81","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-18834"},{"url":"https://github.com/advisories/GHSA-5qrf-j6wf-x965"}],"sources":{"cve":[{"id":"CVE-2018-18834","description":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.","status":"published","published":"2018-10-30T06:00:00Z","modified":"2024-08-05T11:23:08.412Z","updated_at":"2026-11-02T14:35:11.426178Z"}],"euvd":[{"id":"EUVD-2018-10548","description":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.","status":"published","published":"2018-10-30T06:00:00Z","modified":"2024-08-05T11:23:08Z","updated_at":"2026-11-03T02:39:35.233033Z"}],"ghsa":[{"id":"GHSA-5qrf-j6wf-x965","title":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in...","description":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.","status":"published","published":"2022-05-13T01:19:41Z","modified":"2023-02-01T05:05:41Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:16.372723Z"}],"nvd":[{"id":"CVE-2018-18834","description":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.","status":"published","published":"2018-10-30T06:29:01.203Z","modified":"2026-06-17T01:47:59.573Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:46.409324Z"}],"osv":[{"id":"CVE-2018-18834","description":"An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.","status":"published","published":"2018-10-30T06:29:01.203Z","modified":"2026-10-20T10:49:53.541455034Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:08.834469Z"}]}}