How severe is CVE-2013-3220?

CVE-2013-3220 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2013-3220 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3220?

CVE-2013-3220 primarily affects Bitcoin Bitcoin-qt. In total, 63 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3220?

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

When was CVE-2013-3220 published?

CVE-2013-3220 was published on 2013-08-02 and last updated on 2026-06-16.

CVE-2013-3220

CVE-2013-3220 is a medium-severity vulnerability in Bitcoin Bitcoin-qt with a CVSS 2.0 base score of 6.4. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Bitcoin Bitcoin-qt
Published: 2013-08-02
Last modified: 2026-06-16

Description

bitcoind and Bitcoin-Qt before 0.4.9rc2, 0.5.x before 0.5.8rc2, 0.6.x before 0.6.5rc2, and 0.7.x before 0.7.3rc2, and wxBitcoin, do not properly consider whether a block's size could require an excessive number of database locks, which allows remote attackers to cause a denial of service (split) and enable certain double-spending capabilities via a large block that triggers incorrect Berkeley DB locking.

Frequently asked questions

What is CVE-2013-3220?: bitcoind and Bitcoin-Qt before 0.4.9rc2, 0.5.x before 0.5.8rc2, 0.6.x before 0.6.5rc2, and 0.7.x before 0.7.3rc2, and wxBitcoin, do not properly consider whether a block's size could require an excessive number of database locks, which allows remote attackers to cause a denial of service (split) and enable certain double-spending capabilities via a large block that triggers incorrect Berkeley DB locking.
How severe is CVE-2013-3220?: CVE-2013-3220 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2013-3220 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3220?: CVE-2013-3220 primarily affects Bitcoin Bitcoin-qt. In total, 63 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3220?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3220 published?: CVE-2013-3220 was published on 2013-08-02 and last updated on 2026-06-16.

References

Affected products (63)

cpe:2.3:a:bitcoin:bitcoin-qt:*:rc1:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.4:rc4:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.4.8:rc4:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.5.1:rc1:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.5.7:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.5.8:rc1:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.6.0.10:rc4:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.6.3:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.7.0:rc1:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin-qt:0.7.3:rc1:*:*:*:*:*:*
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:bitcoin_core:0.3.12:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.1:rc6:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.2:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.3:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.4:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.4:rc2:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.5:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.6:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.7:rc2:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.0:rc:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.5:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.6:rc2:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.2:*:*:*:*:*:*:*

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CVE-2012-1910 — High (CVSS 7.5): Bitcoin-Qt 0.5.0.x before 0.5.0.5; 0.5.1.x, 0.5.2.x, and 0.5.3.x before 0.5.3.1; and 0.6.x before 0.6.0rc4 on Windows…
CVE-2013-5700 — Medium (CVSS 5.0): The Bloom Filter implementation in bitcoind and Bitcoin-Qt 0.8.x before 0.8.4rc1 allows remote attackers to cause a…

All CVEs affecting Bitcoin Bitcoin-qt →

Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →