{"schema":"threatline.record/2","record":{"id":"CVE-2026-101103","aliases":[],"summary":"HMS Networks PEAK-System PCAN Windows drivers Classic Buffer Overflow","details":"The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.","categories":["Unclassified"],"product":"PEAK-System Device Driver Setup","vendor":"HMS Networks","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101103","source_modified_at":"2026-10-20T20:19:10.646Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"PEAK-System Device Driver Setup","vendor":"HMS Networks","versions":[{"status":"affected","version":"0","lessThanOrEqual":"5.1.2.1151","versionType":"custom"},{"status":"unaffected","version":"5.1.4"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101103","source_modified_at":"2026-10-20T20:19:10.646Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"PCAN Windows CAN device drivers","vendor":"HMS Networks","versions":[{"status":"affected","version":"0","lessThanOrEqual":"5.1.2","versionType":"custom"},{"status":"unaffected","version":"5.1.4"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":5.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00122,"percentile":0.01857,"score_date":"2026-10-23"},"published_at":"2026-10-20T20:19:10.646Z","modified_at":"2026-10-20T20:19:10.646Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-101103","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-20T20:19:10.646Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-101103","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.hms-networks.com/cybersecurity"},{"source":"CVE List","url":"https://www.peak-system.com/support/downloads/software/"},{"source":"CVE List","url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-293-01"},{"source":"CVE List","url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-293-01.json"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-20T20:19:10.646Z","content_hash":"f8aec177e25ba9a495a1b088b39801a6920a8c67eb447db5c2b46e13d3fa5508"}}