CVE-2026-67607
LightFTP 2.3.1 contains a race condition vulnerability that allows remote attackers to crash the server by racing a fresh connection that re
CVSS
5.9
Medium
EPSS
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KEV
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Exploit Today
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0-100
Published: Jul 31, 2026 · Last modified: Jul 31, 2026 · CWE-367
Not enough EPSS history yet.
LightFTP 2.3.1 contains a race condition vulnerability that allows remote attackers to crash the server by racing a fresh connection that reuses the FTP context against an in-progress ABRT cleanup. Attackers can exploit the unprotected re-check of WorkerThreadId between worker_thread_cleanup() and pthread_join() outside of MTLock to cause pthread_join() to operate on an invalid thread ID, resulting in a server crash. CVE-2024-11144 identifies an incomplete fix of this vulnerability.