What is CVE-2025-46597?

CVE-2025-46597 is a high-severity vulnerability in Bitcoin Core, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-03-20.

How severe is CVE-2025-46597?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Bitcoin Core

CVE-2025-46597

Bitcoin Core 0.13.0 through 29.x has an integer overflow.

Vulnerability class: Integer Overflow

EPSS: 0.003 (20.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Bitcoin Bitcoin_core
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

cve@mitre.org (Release Notes)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-46597?: CVE-2025-46597 is a high-severity vulnerability in Bitcoin Core, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2026-03-20.
How severe is CVE-2025-46597?: High severity. CVSS v3 base score is 7.5 out of 10.