CVE-2012-1909
The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other programs, does not properly handle multiple…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other programs, does not properly handle multiple transactions with the same identifier, which allows remote attackers to cause a denial of service (unspendable transaction) by leveraging the ability to create a duplicate coinbase transaction.
Timeline
ID reserved
By mitre
- 4 months later
· 4 months later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (7)
- https://en.bitcoin.it/wiki/BIP_0030 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/sipa/bitcoin/commit/a206b0ea12eb4606b93323268fc81a4f1f952531 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [bitcoin-development] 20120228 Duplicate transactions vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://en.bitcoin.it/wiki/CVEs (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugs.gentoo.org/show_bug.cgi?id=407793 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bitcointalk.org/index.php?topic=67738.0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://r6.ca/blog/20120206T005236Z.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-1909)Record last updated .