What is CVE-2025-46598?

CVE-2025-46598 is a medium-severity vulnerability in Bitcoin Core, classified under Asymmetric Resource Consumption (Amplification). CVSS score: 5.3/10. Published 2026-03-20.

How severe is CVE-2025-46598?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Bitcoin Core

CVE-2025-46598

Bitcoin Core through 29.0 allows a denial of service via a crafted transaction.

Published 2026-03-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.003 (23.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.0% 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-405 — Asymmetric Resource Consumption (Amplification)

References

github.com/bitcoin/bitcoin/releases (Release Notes)
bitcoincore.org/en/2025/10/24/disclose-cve-2025-46598/ (Vendor Advisory)

Frequently asked questions

What is CVE-2025-46598?: CVE-2025-46598 is a medium-severity vulnerability in Bitcoin Core, classified under Asymmetric Resource Consumption (Amplification). CVSS score: 5.3/10. Published 2026-03-20.
How severe is CVE-2025-46598?: Medium severity. CVSS v3 base score is 5.3 out of 10.