What is CVE-2012-2459?

CVE-2012-2459 is a vulnerability in Bitcoin Core. Published 2012-08-06.

Is CVE-2012-2459 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Bitcoin Core

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.

Published 2012-08-06 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.031 (87.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

Bitcoin Core — versions 0.3.4, 0.3.5, 0.3.8

Public proof-of-concept exploits

References

bugs.gentoo.org/show_bug.cgi
bitcointalk.org/
en.bitcoin.it/wiki/CVEs (Vendor Advisory)

Frequently asked questions

What is CVE-2012-2459?: CVE-2012-2459 is a vulnerability in Bitcoin Core. Published 2012-08-06.
Is CVE-2012-2459 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.