Bitcoin Core before 24.1, when debug mode is not used, allows attackers to cause a denial…
Priority LOW 36CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.
Summary
Bitcoin Core before 24.1, when debug mode is not used, allows attackers to cause a denial of service (e.g., CPU consumption) because draining the inventory-to-send queue is inefficient, as exploited in the wild in May 2023.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.014 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33297
- 2026-10-03 Alias added: GHSA-q9gq-6cqp-445j
References
Other 7
- https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
- https://github.com/bitcoin/bitcoin/issues/27586
- https://github.com/bitcoin/bitcoin/issues/27623
- https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-24.1.md
- https://github.com/visualbasic6/drain
- https://github.com/dogecoin/dogecoin/issues/3243#issuecomment-1712575544
- https://x.com/123456/status/1711601593399828530
More Bitcoin Core vulnerabilities
- TI-2023-18826 Memory management and protection issues in Bitcoin Core v22 allows attackers to modify… CVSS 3.1HIGH 7.5
- TI-2018-12251 Bitcoin Core 0.14.x before 0.14.3, 0.15.x before 0.15.2, and 0.16.x before 0.16.3 and… CVSS 3.1HIGH 7.5
- TI-2024-23274 Bitcoin Core before 25.0 allows remote attackers to cause a denial of service (blocktxn… CVSS 3.1HIGH 7.5
- TI-2024-35417 Bitcoin Core before 0.20.0 allows remote attackers to cause a denial of service (infinite… CVSS 3.1HIGH 7.5
- TI-2024-35412 Bitcoin Core before 0.20.0 allows remote attackers to cause a denial of service (memory… CVSS 3.1HIGH 7.5
- TI-2019-15274 Bitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon… CVSS 3.1HIGH 7.5
Sources
- CVE-2023-33297 · CVE Program
- CVE-2023-33297 · NVD
- FIRST EPSS
- GHSA-q9gq-6cqp-445j · GitHub Advisory Database · CC BY 4.0
- CVE-2023-33297 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences