CVE-2020-37280

7.5 HIGHpublic exploit available

Published 2026-10-12 · Updated 2026-10-16

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-789

Public exploit & PoC references

https://github.com/PelionIoT/cbor-sync
https://github.com/PelionIoT/cbor-sync/issues/6
https://github.com/PelionIoT/cbor-sync/pull/4

All references

https://github.com/PelionIoT/cbor-sync
https://github.com/PelionIoT/cbor-sync/issues/6
https://github.com/PelionIoT/cbor-sync/pull/4
https://www.vulncheck.com/advisories/cbor-sync-through-1.0.4-memory-exhaustion-via-unchecked-cbor-array-lengths

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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