How severe is CVE-2010-5140?

CVE-2010-5140 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2010-5140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-5140?

CVE-2010-5140 primarily affects Bitcoin Bitcoin Core. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-5140?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-5140 published?

CVE-2010-5140 was published on 2012-08-06 and last updated on 2026-06-16.

CVE-2010-5140

CVE-2010-5140 is a medium-severity vulnerability in Bitcoin Bitcoin Core with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Bitcoin Bitcoin Core
Published: 2012-08-06
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2010-5140?: 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.
How severe is CVE-2010-5140?: CVE-2010-5140 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2010-5140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-5140?: CVE-2010-5140 primarily affects Bitcoin Bitcoin Core. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-5140?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-5140 published?: CVE-2010-5140 was published on 2012-08-06 and last updated on 2026-06-16.

References

Affected products (12)

cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.3.4:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.3.5:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.3.8:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.3.10:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.3.11:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:wxbitcoin:*:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:wxbitcoin:0.3.4:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:wxbitcoin:0.3.5:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:wxbitcoin:0.3.8:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:wxbitcoin:0.3.10:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:wxbitcoin:0.3.11:*:*:*:*:*:*:*

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