What is CVE-2024-52919?

CVE-2024-52919 is a medium-severity vulnerability in Bitcoin Core, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2024-11-18.

How severe is CVE-2024-52919?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Integer overflow in Bitcoin Core

CVE-2024-52919

Bitcoin Core before 22.0 has a CAddrMan nIdCount integer overflow and resultant assertion failure (and daemon exit) via a flood of addr messages.

Vulnerability class: Integer Overflow

Published 2024-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (18.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Bitcoin Core

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures (Third Party Advisory)
bitcoincore.org/en/2024/07/31/disclose-addrman-int-overflow/ (Vendor Advisory)

Frequently asked questions

What is CVE-2024-52919?: CVE-2024-52919 is a medium-severity vulnerability in Bitcoin Core, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2024-11-18.
How severe is CVE-2024-52919?: Medium severity. CVSS v3 base score is 6.5 out of 10.