{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2020-37280", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-12T19:27:44.866Z", "datePublished": "2026-10-12T20:55:04.662Z", "dateUpdated": "2026-10-12T20:55:04.662Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-12T20:55:04.662Z" }, "datePublic": "2020-11-10T00:00:00.000Z", "title": "cbor-sync through 1.0.4 Memory Exhaustion via Unchecked CBOR Array Lengths", "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Memory Allocation with Excessive Size Value", "cweId": "CWE-789", "type": "CWE" } ] } ], "affected": [ { "vendor": "PelionIoT", "product": "cbor-sync", "defaultStatus": "unaffected", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThanOrEqual": "1.0.4" } ], "packageURL": "pkg:npm/cbor-sync", "repo": "https://github.com/PelionIoT/cbor-sync" } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://github.com/PelionIoT/cbor-sync/pull/4", "tags": [ "issue-tracking", "patch" ], "name": "GitHub Pull Request #4" }, { "url": "https://github.com/PelionIoT/cbor-sync/issues/6", "tags": [ "issue-tracking" ], "name": "GitHub Issue #6" }, { "url": "https://github.com/PelionIoT/cbor-sync", "tags": [ "product" ] }, { "name": "VulnCheck Advisory: cbor-sync through 1.0.4 Memory Exhaustion via Unchecked CBOR Array Lengths", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/cbor-sync-through-1.0.4-memory-exhaustion-via-unchecked-cbor-array-lengths" } ], "credits": [ { "lang": "en", "value": "Mohammed Arfath A", "type": "finder" }, { "lang": "en", "value": "headlessme", "type": "finder" }, { "lang": "en", "value": "joszamama", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } } } }