The penny-flooding protection mechanism in the CTxMemPool::accept method in bitcoind and Bitcoin-Qt before 0.4.9rc1, 0.5.x before 0.5.8rc1, 0.6.0 before 0.6.0.11rc1, 0.6.1 through 0.6.5 before 0.6.5rc1, and 0.7.x before 0.7.3rc1 allows remote attackers to determine associations between wallet addresses and IP addresses via a series of large Bitcoin transactions with insufficient fees.
Conclusion & alert: CVE-2013-2272 is rated Moderate Risk (48.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.89%). Core evidence: EPSS rose +1.67% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.22% | 1.89% | +1.67% |
| 2 | 2025-03-30 | 0.26% | 0.22% | -0.04% |
| 3 | 2025-03-29 | — | 0.26% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| bitcoin | bitcoin-qt | <= 0.4.8 | cpe:2.3:a:bitcoin:bitcoin-qt:*:rc4:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.4 | cpe:2.3:a:bitcoin:bitcoin-qt:0.4:rc4:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.5.0 | cpe:2.3:a:bitcoin:bitcoin-qt:0.5.0:rc1:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.5.0.4 | cpe:2.3:a:bitcoin:bitcoin-qt:0.5.0.4:*:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.5.1 | cpe:2.3:a:bitcoin:bitcoin-qt:0.5.1:rc1:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.5.3.0 | cpe:2.3:a:bitcoin:bitcoin-qt:0.5.3.0:*:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.5.7 | cpe:2.3:a:bitcoin:bitcoin-qt:0.5.7:*:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.6.0.10 | cpe:2.3:a:bitcoin:bitcoin-qt:0.6.0.10:rc4:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.6.3 | cpe:2.3:a:bitcoin:bitcoin-qt:0.6.3:*:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.7.0 | cpe:2.3:a:bitcoin:bitcoin-qt:0.7.0:rc1:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.7.1 | cpe:2.3:a:bitcoin:bitcoin-qt:0.7.1:*:*:*:*:*:*:* |
| bitcoin | bitcoin-qt | 0.7.2 | cpe:2.3:a:bitcoin:bitcoin-qt:0.7.2:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | — | cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.3.4 | cpe:2.3:a:bitcoin:bitcoin_core:0.3.4:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.3.5 | cpe:2.3:a:bitcoin:bitcoin_core:0.3.5:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.3.8 | cpe:2.3:a:bitcoin:bitcoin_core:0.3.8:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.3.10 | cpe:2.3:a:bitcoin:bitcoin_core:0.3.10:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.3.11 | cpe:2.3:a:bitcoin:bitcoin_core:0.3.11:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.3.12 | cpe:2.3:a:bitcoin:bitcoin_core:0.3.12:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.0 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.0:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.1 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.1:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.1 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.1:rc6:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.2 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.2:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.3 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.3:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.4 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.4:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.4 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.4:rc2:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.5 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.5:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.6 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.6:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.4.7 | cpe:2.3:a:bitcoin:bitcoin_core:0.4.7:rc2:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.5.0 | cpe:2.3:a:bitcoin:bitcoin_core:0.5.0:rc:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.5.3 | cpe:2.3:a:bitcoin:bitcoin_core:0.5.3:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.5.3.1 | cpe:2.3:a:bitcoin:bitcoin_core:0.5.3.1:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.5.4 | cpe:2.3:a:bitcoin:bitcoin_core:0.5.4:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.5.5 | cpe:2.3:a:bitcoin:bitcoin_core:0.5.5:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.5.6 | cpe:2.3:a:bitcoin:bitcoin_core:0.5.6:rc2:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.1 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.1:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.2 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.2:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.3 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.3:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.4 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.4:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.5 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.5:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.6 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.6:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.7 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.7:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.0.8 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.0.8:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.1 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.1:*:*:*:*:*:*:* |
| bitcoin | bitcoin_core | 0.6.2 | cpe:2.3:a:bitcoin:bitcoin_core:0.6.2:*:*:*:*:*:*:* |
| bitcoin | bitcoind | <= 0.4.4 | cpe:2.3:a:bitcoin:bitcoind:*:rc4:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.5.7 | cpe:2.3:a:bitcoin:bitcoind:0.5.7:*:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.6.0.0 | cpe:2.3:a:bitcoin:bitcoind:0.6.0.0:*:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.6.0.10 | cpe:2.3:a:bitcoin:bitcoind:0.6.0.10:rc4:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.6.3 | cpe:2.3:a:bitcoin:bitcoind:0.6.3:*:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.6.4 | cpe:2.3:a:bitcoin:bitcoind:0.6.4:rc4:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.7.0 | cpe:2.3:a:bitcoin:bitcoind:0.7.0:rc1:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.7.1 | cpe:2.3:a:bitcoin:bitcoind:0.7.1:*:*:*:*:*:*:* |
| bitcoin | bitcoind | 0.7.2 | cpe:2.3:a:bitcoin:bitcoind:0.7.2:*:*:*:*:*:*:* |