PT-2025-43695 · Unknown · Bitcoin Core

Published 2025-10-24 · Updated 2026-03-22 · CVE-2025-46597

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Bitcoin Core (affected versions not specified)

Description The software contains an issue that requires the victim to run it on an old 32-bit system and to have configured a large, non-standard mempool. An attacker must then craft an invalid 1 GB block to potentially exploit the issue. The issue is considered to have low severity.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2025-46597

Affected Products

Bitcoin Core

References · 10

• https://osv.dev/vulnerability/CVE-2025-46597 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-46597 · Security Note
• https://bitcoincore.org/en/2025/10/24/disclose-cve-2025-46597 · Vendor Advisory
• https://github.com/bitcoin/bitcoin/releases · Note
• https://twitter.com/CVEnew/status/2035627027529621956 · Twitter Post
• https://twitter.com/oomahq/status/1981866738242486504 · Twitter Post
• https://twitter.com/LiliH65289916/status/1982014123593576745 · Twitter Post
• https://twitter.com/LiliH65289916/status/1982011396196810918 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2035112904253424123 · Twitter Post
• https://twitter.com/oomahq/status/1981837654401429834 · Twitter Post