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Vulnerability record · CVE-2012-4684 · published 12 March 2013

CVE-2012-4684: Bitcoin-qt vulnerability

Bitcoin · Bitcoin Qt

The alert functionality in bitcoind and Bitcoin-Qt before 0.7.0 supports different character representations of the same signature data, but relies on a hash of this signature, which allows remote attackers to cause a denial of service (resource consumption) via a valid modified signature for a circulating alert.

7.8 CVSS 2.0 High EPSS 2.9% · top 13.8% CWE-399 · CWE-399
7.8CVSS 2.0 base score
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

The alert functionality in bitcoind and Bitcoin-Qt before 0.7.0 supports different character representations of the same signature data, but relies on a hash of this signature, which allows remote attackers to cause a denial of service (resource consumption) via a valid modified signature for a circulating alert.

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

Affected products

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

References

LinkTags
https://bitcointalk.org/index.php?topic=148109.0
https://bitcointalk.org/index.php?topic=8392.0
https://en.bitcoin.it/wiki/CVE-2012-4684
https://en.bitcoin.it/wiki/CVEs
https://bitcointalk.org/index.php?topic=148109.0
https://bitcointalk.org/index.php?topic=8392.0
https://en.bitcoin.it/wiki/CVE-2012-4684
https://en.bitcoin.it/wiki/CVEs

Track CVE-2012-4684 inside VULONE

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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%7.5CVE-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 0.40%7.5CVE-2025-54605Bitcoin core uncontrolled resource consumption vulnerabilityBitcoin Core through 29.0 allows Uncontrolled Resource Consumption (issue 2 of 2).EPSS 0.40%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-2024-52912Bitcoin core integer overflow vulnerabilityBitcoin Core before 0.21.0 allows a network split that is resultant from an integer overflow (calculating the time offset for newly connecting peers)…EPSS 0.53%7.5CVE-2024-52914Bitcoin core allocation without limits vulnerabilityIn Bitcoin Core before 0.18.0, a node could be stalled for hours when processing the orphans of a crafted unconfirmed transaction.EPSS 0.53%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%

Source: NIST National Vulnerability Database (record CVE-2012-4684), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.