Resource exhaustion in Bitcoin Core

CVE-2024-35202

Bitcoin Core before 25.0 allows remote attackers to cause a denial of service (blocktxn message-handling assertion and node exit) by including transactions in a blocktxn message that are not committed to in a block's merkle root. FillBlock can be called twice for one PartiallyDownloadedBlock instance.

EPSS: 0.009 (55.6th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-35202?
CVE-2024-35202 is a high-severity vulnerability in Bitcoin Core, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2024-10-10.
How severe is CVE-2024-35202?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-35202 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.