{"id":"CVE-2021-45769","aliases":["EUVD-2021-32487","GHSA-jwxx-pw7h-7cx3"],"status":"published","title":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of...","description":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01097,"percentile":0.65847,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2022-01-14T19:10:38Z","modified":"2026-10-20T10:55:08Z","products":[{"vendor":"mz-automation","product":"libiec61850"}],"references":[{"url":"https://github.com/mz-automation/libiec61850/issues/368","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45769"},{"url":"https://github.com/advisories/GHSA-jwxx-pw7h-7cx3"}],"sources":{"cve":[{"id":"CVE-2021-45769","description":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","status":"published","published":"2022-01-14T19:10:38Z","modified":"2024-08-04T04:47:02.17Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32487","description":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","status":"published","published":"2022-01-14T19:10:38Z","modified":"2024-08-04T04:47:02Z","updated_at":"2026-11-03T03:08:25.77408Z"}],"ghsa":[{"id":"GHSA-jwxx-pw7h-7cx3","title":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of...","description":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","status":"published","published":"2022-01-15T00:00:57Z","modified":"2023-02-03T05:04:35Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:53:35.259064Z"}],"nvd":[{"id":"CVE-2021-45769","description":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","status":"published","published":"2022-01-14T20:15:15.063Z","modified":"2026-06-17T04:14:03.917Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:07:03.821385Z"}],"osv":[{"id":"CVE-2021-45769","description":"A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.","status":"published","published":"2022-01-14T20:15:15.063Z","modified":"2026-10-20T10:55:08.577426695Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:22.18434Z"}]}}