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CVE-2023-33297

25
FAUCET Score

CVE-2023-33297 is a denial-of-service vulnerability affecting Bitcoin Core versions prior to 24.1 when not in debug mode. Attackers can exploit an inefficient inventory-to-send queue draining process, leading to high CPU consumption. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability. While exploited in the wild in May 2023, there is no public exploit code, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 24.1CPE matchmatch criteria
cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.40%
Probability of exploitation in next 30 days
EPSS Percentile
69.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0140 is in the 51st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

en.bitcoin.it / wiki/Common_Vulnerabilities_and_Exposures
Not Applicable
github.com / bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-24.1.md
Release Notes
github.com / bitcoin/bitcoin/issues/27586
Issue Tracking
github.com / bitcoin/bitcoin/issues/27623
Issue Tracking
github.com / bitcoin/bitcoin/pull/27610
Issue TrackingPatch
github.com / dogecoin/dogecoin/issues/3243
github.com / visualbasic6/drain
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/F2EI7SAP4QP2AJYK2JVEOO4GJ6DOBSM5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/H3CQY277NWXY3RFCZCJ4VKT2P3ROACEJ
x.com / 123456/status/1711601593399828530