{"schema":"threatline.record/2","record":{"id":"CVE-2020-37280","aliases":[],"summary":"cbor-sync through 1.0.4 Memory Exhaustion via Unchecked CBOR Array Lengths","details":"cbor-sync through 1.0.4 contains a resource exhaustion vulnerability in CBOR.decode that trusts declared array and map lengths without checking remaining input. Remote attackers can supply a tiny crafted CBOR payload declaring huge lengths to drive billions of iterations, exhausting CPU and process memory.","categories":["Unclassified"],"product":"cbor-sync","vendor":"PelionIoT","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-37280","source_modified_at":"2026-10-13T16:52:41.604Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"cbor-sync","vendor":"PelionIoT","versions":[{"version":"0","status":"affected","versionType":"semver","lessThanOrEqual":"1.0.4"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00538,"percentile":0.44512,"score_date":"2026-10-23"},"published_at":"2026-10-12T20:55:04.662Z","modified_at":"2026-10-13T16:52:41.604Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2020-37280","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T16:52:41.604Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-37280","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/PelionIoT/cbor-sync/pull/4","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://github.com/PelionIoT/cbor-sync/issues/6","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/PelionIoT/cbor-sync","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/cbor-sync-through-1.0.4-memory-exhaustion-via-unchecked-cbor-array-lengths","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-13T16:22:06.815030Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T16:52:41.604Z","content_hash":"3f0f280f705265af3b6246dd96156861f1d845ea1b0cc09ee30428e6c78b2428"}}