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Vulnerability record · CVE-2010-5140 · published 6 August 2012

CVE-2010-5140: Bitcoin core memory buffer overflow vulnerability

Bitcoin · Bitcoin Core

wxBitcoin and bitcoind before 0.3.13 do not properly handle bitcoins associated with Bitcoin transactions that have zero confirmations, which allows remote attackers to cause a denial of service (invalid-transaction flood) by sending low-valued transactions without transaction fees.

5.0 CVSS 2.0 Medium EPSS 2.3% · top 17.0% CWE-119 · Memory buffer overflow
5.0CVSS 2.0 base score
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

wxBitcoin and bitcoind before 0.3.13 do not properly handle bitcoins associated with Bitcoin transactions that have zero confirmations, which allows remote attackers to cause a denial of service (invalid-transaction flood) by sending low-valued transactions without transaction fees.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.bitcoin.org/smf/index.php?topic=1306.0
https://en.bitcoin.it/wiki/CVEs Vendor Advisory
http://www.bitcoin.org/smf/index.php?topic=1306.0
https://en.bitcoin.it/wiki/CVEs Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2013-2292Bitcoin-qt vulnerabilitybitcoind and Bitcoin-Qt 0.8.0 and earlier allow remote attackers to cause a denial of service (electricity consumption) by mining a block to create a…EPSS 2.6%7.8CVE-2012-4684Bitcoin-qt vulnerabilityThe alert functionality in bitcoind and Bitcoin-Qt before 0.7.0 supports different character representations of the same signature data, but relies o…EPSS 2.9%7.5CVE-2025-46597Bitcoin core integer overflow vulnerabilityBitcoin Core 0.13.0 through 29.x has an integer overflow.EPSS 0.28%7.5CVE-2025-54604Bitcoin core uncontrolled resource consumption vulnerabilityBitcoin Core through 29.0 allows Uncontrolled Resource Consumption (issue 1 of 2).EPSS 0.43%7.5CVE-2025-54605Bitcoin core uncontrolled resource consumption vulnerabilityBitcoin Core through 29.0 allows Uncontrolled Resource Consumption (issue 2 of 2).EPSS 0.43%7.5CVE-2019-25220Bitcoin core allocation without limits vulnerabilityBitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon crash) via a flood of low-difficulty header chains (aka a "Ch…EPSS 0.82%7.5CVE-2024-52915Bitcoin core allocation without limits vulnerabilityBitcoin Core before 0.20.0 allows remote attackers to cause a denial of service (memory consumption) via a crafted INV message.EPSS 0.65%7.5CVE-2024-52916Bitcoin core allocation without limits vulnerabilityBitcoin Core before 0.15.0 allows a denial of service (OOM kill of a daemon process) via a flood of minimum difficulty headers.EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2010-5140), CISA KEV, FIRST EPSS (scores of 2026-10-14). This page is refreshed as NVD updates the record.