CVE-2024-32985Network attack vector

Remote node crash via error-processing race

Published May 9, 2024 · Updated Aug 2, 2024

Race condition in Stellar Core before 20.4.0 allows remote attackers to crash a core node through peer-to-peer network traffic. The Overlay subsystem mishandles an error-code failure mode from a third-party library during concurrent processing, allowing the race to terminate the process. No privileges or user interaction are required, but exploitation has high complexity and affects availability only; restarted nodes return online promptly.

CVSS severity5.9
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Stellar Core before 20.4.0 allows remote attackers to crash a core node through peer-to-peer network traffic. The Overlay subsystem mishandles an error-code failure mode from a third-party library during concurrent processing, allowing the race to terminate the process. No privileges or user interaction are required, but exploitation has high complexity and affects availability only; restarted nodes return online promptly.

The record

CVE
CVE-2024-32985
Published
May 9, 2024
Updated
Aug 2, 2024
Vendor
Stellar Development Foundation
Product
Stellar Core
Classifications
CWE-362, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=< 20.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Stellar Development Foundation · Stellar Coreversion=< 20.4.0

Published CVSS scores

5.9GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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