{"id":"CVE-2020-7054","aliases":["EUVD-2020-28188","GHSA-g2w3-8w5r-xm44"],"status":"published","title":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has...","description":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01101,"percentile":0.65935,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-01-14T20:32:20Z","modified":"2026-10-20T10:54:23Z","products":[{"vendor":"mz-automation","product":"libiec61850"}],"references":[{"url":"https://github.com/mz-automation/libiec61850/issues/200","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7054"},{"url":"https://github.com/advisories/GHSA-g2w3-8w5r-xm44"}],"sources":{"cve":[{"id":"CVE-2020-7054","description":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.","status":"published","published":"2020-01-14T20:32:20Z","modified":"2024-08-04T09:18:02.983Z","updated_at":"2026-11-02T14:35:58.787905Z"}],"euvd":[{"id":"EUVD-2020-28188","description":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.","status":"published","published":"2020-01-14T20:32:20Z","modified":"2024-08-04T09:18:02Z","updated_at":"2026-11-03T03:08:01.029528Z"}],"ghsa":[{"id":"GHSA-g2w3-8w5r-xm44","title":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has...","description":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.","status":"published","published":"2022-05-24T17:06:12Z","modified":"2023-01-29T05:01:03Z","updated_at":"2026-11-02T14:44:43.584363Z"}],"nvd":[{"id":"CVE-2020-7054","description":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.","status":"published","published":"2020-01-14T21:15:16.707Z","modified":"2026-06-17T03:24:15.733Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:05:52.385274Z"}],"osv":[{"id":"CVE-2020-7054","description":"MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c in libIEC61850 through 1.4.0 has a heap-based buffer overflow when parsing the MMS_BIT_STRING data type.","status":"published","published":"2020-01-14T21:15:16.707Z","modified":"2026-10-20T10:54:23.488237169Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:17.34531Z"}]}}