The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other…
Priority LOW 28CWE-16Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.02928 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:* | all versions | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:*:rc2:*:*:*:*:*:* | up to 0.4.4 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.3.4:*:*:*:*:*:*:* | 0.3.4 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.3.5:*:*:*:*:*:*:* | 0.3.5 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.3.8:*:*:*:*:*:*:* | 0.3.8 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.3.10:*:*:*:*:*:*:* | 0.3.10 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.3.11:*:*:*:*:*:*:* | 0.3.11 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.3.12:*:*:*:*:*:*:* | 0.3.12 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.4.0:*:*:*:*:*:*:* | 0.4.0 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoin:bitcoin_core:0.4.1:*:*:*:*:*:*:* | 0.4.1 | Vulnerable | Bitcoin |
- cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:*:rc2:*:*:*:*:*:* Versions up to 0.4.4 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.3.4:*:*:*:*:*:*:* Versions 0.3.4 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.3.5:*:*:*:*:*:*:* Versions 0.3.5 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.3.8:*:*:*:*:*:*:* Versions 0.3.8 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.3.10:*:*:*:*:*:*:* Versions 0.3.10 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.3.11:*:*:*:*:*:*:* Versions 0.3.11 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.3.12:*:*:*:*:*:*:* Versions 0.3.12 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.4.0:*:*:*:*:*:*:* Versions 0.4.0 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoin:bitcoin_core:0.4.1:*:*:*:*:*:*:* Versions 0.4.1 Vulnerable ·Bitcoin
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1909
- 2026-10-03 Alias added: GHSA-77f9-3fqp-c88c
References
More Bitcoin Core vulnerabilities
- TI-2023-18826 Memory management and protection issues in Bitcoin Core v22 allows attackers to modify… CVSS 3.1HIGH 7.5
- TI-2018-12251 Bitcoin Core 0.14.x before 0.14.3, 0.15.x before 0.15.2, and 0.16.x before 0.16.3 and… CVSS 3.1HIGH 7.5
- TI-2024-23274 Bitcoin Core before 25.0 allows remote attackers to cause a denial of service (blocktxn… CVSS 3.1HIGH 7.5
- TI-2024-35417 Bitcoin Core before 0.20.0 allows remote attackers to cause a denial of service (infinite… CVSS 3.1HIGH 7.5
- TI-2024-35412 Bitcoin Core before 0.20.0 allows remote attackers to cause a denial of service (memory… CVSS 3.1HIGH 7.5
- TI-2019-15274 Bitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon… CVSS 3.1HIGH 7.5
Sources
- CVE-2012-1909 · CVE Program
- CVE-2012-1909 · NVD
- FIRST EPSS
- GHSA-77f9-3fqp-c88c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences