CVE-2024-52918Network attack vector

Application crash via unbounded payment-request allocation

Published Nov 18, 2024 · Updated Nov 18, 2024

Denial of service in Bitcoin-Qt in Bitcoin Core before 0.20.0 allows remote attackers to crash the application through a crafted BIP72 URI. The BIP21 r parameter causes Bitcoin-Qt to download the referenced payment-request file and allocate memory for its full size without an effective bound. A victim must open the malicious URI; the transfer runs quietly in the GUI until memory exhaustion terminates the client.

CVSS severity6.5
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Bitcoin-Qt in Bitcoin Core before 0.20.0 allows remote attackers to crash the application through a crafted BIP72 URI. The BIP21 r parameter causes Bitcoin-Qt to download the referenced payment-request file and allocate memory for its full size without an effective bound. A victim must open the malicious URI; the transfer runs quietly in the GUI until memory exhaustion terminates the client.

The record

CVE
CVE-2024-52918
Published
Nov 18, 2024
Updated
Nov 18, 2024
Vendor
Bitcoin
Product
Bitcoin Core
Classifications
CWE-770, T1499, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bitcoin · Bitcoin Coreversion=0 <0.20.0

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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