CVE-2017-12842

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Bitcoin Core before 0.14 allows an attacker to create an ostensibly valid SPV proof for a payment to a victim who uses an SPV wallet, even if that payment did not actually occur. Completing the attack would cost more than a million dollars, and is relevant mainly only in situations where an autonomous system relies solely on an SPV proof for transactions of a greater dollar amount.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bitslog.wordpress.com/2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-design/Third Party Advisory
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_ExposuresVendor Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-February/016697.htmlThird Party Advisory
https://bitslog.wordpress.com/2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-design/Third Party Advisory
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_ExposuresVendor Advisory
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-February/016697.htmlThird Party Advisory

Timeline

Published: Mar 16, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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