Bitcoin Core before 22.0 has a CAddrMan nIdCount integer overflow and resultant assertion failure (and daemon exit) via a flood of addr messages.
Conclusion & alert: CVE-2024-52919 is rated Low Risk (32.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.27%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.06% | 0.27% | +0.21% |
| 2 | 2025-12-27 | 0.17% | 0.06% | -0.11% |
| 3 | 2025-11-21 | — | 0.17% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| bitcoin | bitcoin_core | < 22.0 | cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://bitcoincore.org/en/2024/07/31/disclose-addrman-int-overflow/ | Vendor Advisory |
| https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures | Third Party Advisory |