How severe is CVE-2012-2459?

CVE-2012-2459 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-2459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2459?

CVE-2012-2459 primarily affects Bitcoin Bitcoin Core. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-2459?

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

When was CVE-2012-2459 published?

CVE-2012-2459 was published on 2012-08-06 and last updated on 2026-06-16.

CVE-2012-2459

CVE-2012-2459 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.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Bitcoin Bitcoin Core
Published: 2012-08-06
Last modified: 2026-06-16

Description

Unspecified vulnerability in bitcoind and Bitcoin-Qt before 0.4.6, 0.5.x before 0.5.5, 0.6.0.x before 0.6.0.7, and 0.6.x before 0.6.2 allows remote attackers to cause a denial of service (block-processing outage and incorrect block count) via unknown behavior on a Bitcoin network.

Frequently asked questions

What is CVE-2012-2459?: Unspecified vulnerability in bitcoind and Bitcoin-Qt before 0.4.6, 0.5.x before 0.5.5, 0.6.0.x before 0.6.0.7, and 0.6.x before 0.6.2 allows remote attackers to cause a denial of service (block-processing outage and incorrect block count) via unknown behavior on a Bitcoin network.
How severe is CVE-2012-2459?: CVE-2012-2459 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-2459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2459?: CVE-2012-2459 primarily affects Bitcoin Bitcoin Core. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-2459?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-2459 published?: CVE-2012-2459 was published on 2012-08-06 and last updated on 2026-06-16.

References

Affected products (13)

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:0.4.4:*:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.4.4:rc2:*:*:*:*:*:*
cpe:2.3:a:bitcoin:bitcoin_core:0.5.0:rc:*:*:*:*:*:*

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