VULNERABILITY INTELLIGENCE

CVE-2024-55563

CVSS score5.3 MEDIUM
EPSS probability0.67%
CISA KEVNot currently listed
Published2024-12-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

Bitcoin Core through 27.2 allows transaction-relay jamming via an off-chain protocol attack, a related issue to CVE-2024-52913. For example, the outcome of an HTLC (Hashed Timelock Contract) can be changed because a flood of transaction traffic prevents propagation of certain Lightning channel transactions.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-770

Primary references