{"id":"CVE-2024-45969","details":"NULL pointer dereference in the MMS Client in MZ Automation LibIEC1850 before commit 7afa40390b26ad1f4cf93deaa0052fe7e357ef33 allows a malicious server to Cause a Denial-of-Service via the MMS InitiationResponse message.","modified":"2026-08-12T15:15:35.154785Z","published":"2024-11-15T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45969.json","unresolved_ranges":[{"extracted_events":[{"introduced":"LibIEC1850"}],"source":"DESCRIPTION"}]},"references":[{"type":"WEB","url":"https://encs.eu/news/critical-security-vulnerabilities-discovered-in-mz-automations-mms-client/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45969.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45969"},{"type":"FIX","url":"https://github.com/mz-automation/libiec61850/commit/7afa40390b26ad1f4cf93deaa0052fe7e357ef33"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mz-automation/libiec61850","events":[{"introduced":"0"},{"fixed":"7afa40390b26ad1f4cf93deaa0052fe7e357ef33"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v1.5.1","v1.5.0","v1.4.1","v1.4.0","v1.2.0","v1.3.0","v1.2.2","v1.2.1","v1.1","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45969.json","vanir_signatures_modified":"2026-08-12T15:15:35Z","vanir_signatures":[{"signature_version":"v1","source":"https://github.com/mz-automation/libiec61850/commit/7afa40390b26ad1f4cf93deaa0052fe7e357ef33","target":{"file":"src/mms/iso_acse/acse.c","function":"AcseConnection_parseMessage"},"deprecated":false,"digest":{"function_hash":"65874975913600414817121009793659144608","length":790},"id":"CVE-2024-45969-33914dae","signature_type":"Function"},{"source":"https://github.com/mz-automation/libiec61850/commit/7afa40390b26ad1f4cf93deaa0052fe7e357ef33","target":{"file":"src/mms/iso_acse/acse.c"},"deprecated":false,"digest":{"line_hashes":["63039055387160520615588532359762169581","22483413895632105549840759042935725651","66809290995931694386176693894027195812"],"threshold":0.9},"id":"CVE-2024-45969-e5b7ec22","signature_type":"Line","signature_version":"v1"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}