Stellar-core's Overlay - security fix for DDoS mitigation

published 2024-05-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-30730

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

Stellar-core is a reference implementation for the peer-to-peer agent that manages the Stellar network. Prior to 20.4.0, core nodes could be randomly crashed due to a race condition with a 3rd party library. The likelihood of affecting the network is low since crashed nodes come back up online right away. Code fix mitigation is part of Stellar-core v20.4.0 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-05-10)

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

stellar stellar-core

Classification

Weakness

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

github.com /stellar/stellar-core/security/advisories/GHSA-mgx8-frjx-x33m

Sources

CVE List CVE-2024-32985
NVD CVE-2024-32985

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary