CVE-2024-52912

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-18 · updated 2026-06-17
Weakness: CWE-190

Description

Bitcoin Core before 0.21.0 allows a network split that is resultant from an integer overflow (calculating the time offset for newly connecting peers) and an abs64 logic bug.

Affected products

Bitcoin Core: before 0.21.0 — fixed in 0.21.0

How to fix

Upgrade to a fixed version: Bitcoin Core 0.21.0. Check the vendor advisory for mitigations.

References

https://bitcoincore.org/en/2024/07/03/disclose-timestamp-overflow/
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures

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