{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19206","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-08-07T08:08:58.628Z","datePublished":"2026-08-07T13:45:12.065Z","dateUpdated":"2026-08-07T14:24:02.477Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-08-07T13:45:12.065Z"},"title":"MZ Automation libiec61850 ASDU Element sv_subscriber.c SVReceiver_stopThreadless heap-based overflow","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-122","lang":"en","description":"Heap-based Buffer Overflow"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-119","lang":"en","description":"Memory Corruption"}]}],"affected":[{"vendor":"MZ Automation","product":"libiec61850","versions":[{"version":"1.6.0","status":"affected"},{"version":"1.6.1","status":"affected"},{"version":"1.6.2","status":"unaffected"}],"cpes":["cpe:2.3:a:mz_automation:libiec61850:*:*:*:*:*:*:*:*"],"modules":["ASDU Element Handler"]}],"descriptions":[{"lang":"en","value":"A security flaw has been discovered in MZ Automation libiec61850 up to 1.6.1. This affects the function SVReceiver_stopThreadless of the file src/sampled_values/sv_subscriber.c of the component ASDU Element Handler. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.2 is able to mitigate this issue. The patch is named a96bd674e0238276dd1387d31d52e55229d0771e. The affected component should be upgraded."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":4.8,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.3,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.3,"vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":4.3,"vectorString":"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C"}}],"timeline":[{"time":"2026-08-07T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-07T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-07T10:41:51.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Chuan Wei","type":"finder"},{"lang":"en","value":"SCU_1CP (VulDB User)","type":"reporter"},{"lang":"en","value":"SCU_1CP (VulDB User)","type":"analyst"}],"references":[{"url":"https://vuldb.com/vuln/386950","name":"VDB-386950 | MZ Automation libiec61850 ASDU Element sv_subscriber.c SVReceiver_stopThreadless heap-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/386950/cti","name":"VDB-386950 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-19206","name":"CVE-2026-19206 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/864840","name":"Submit #864840 | MZ Automation libiec61850 1.6.1 Memory Corruption (heap-buffer-overflow)","tags":["third-party-advisory"]},{"url":"https://github.com/mz-automation/libiec61850/issues/598","tags":["exploit","issue-tracking"]},{"url":"https://github.com/mz-automation/libiec61850/issues/598#issuecomment-4858659113","tags":["issue-tracking"]},{"url":"https://github.com/mz-automation/libiec61850/commit/a96bd674e0238276dd1387d31d52e55229d0771e","tags":["patch"]},{"url":"https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2","tags":["patch"]}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202608"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-07T14:21:31.882791Z","id":"CVE-2026-19206","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-07T14:24:02.477Z"}}]}}