{"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"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:npm/cbor-sync", "product": "cbor-sync", "repo": "https://github.com/PelionIoT/cbor-sync", "vendor": "PelionIoT", "versions": [{"lessThanOrEqual": "1.0.4", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "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."}], "id": "CVE-2020-37280", "lastModified": "2026-10-12T21:17:05.733", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-12T21:17:05.733", "references": [{"source": "[email protected]", "url": "https://github.com/PelionIoT/cbor-sync"}, {"source": "[email protected]", "url": "https://github.com/PelionIoT/cbor-sync/issues/6"}, {"source": "[email protected]", "url": "https://github.com/PelionIoT/cbor-sync/pull/4"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/cbor-sync-through-1.0.4-memory-exhaustion-via-unchecked-cbor-array-lengths"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-789"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"created": "2026-10-12T22:30:07.754014+00:00", "updated": "2026-10-12T22:30:07.754019+00:00", "vendors": []}