📄 LightFTP Server 2.4 Race Condition

LightFTP versions through 2.4 current master, commit d28c5e0 contain multiple data race conditions in ftpserv.c caused by unsynchronized access to the shared FTPCONTEXT between a connection's control thread and its data-transfer worker thread. !/usr/bin/env python3 LightFTP Server 2.4 Race...

LightFTP Server 2.4 Race Condition

Summary Small x86-32/x64 FTP Server. Description LightFTP through version 2.4 current master, commit d28c5e0 contains multiple data races in ftpserv.c caused by unsynchronized access to the shared FTPCONTEXT between a connection's control thread and its data-transfer worker thread. In...

CVE-2026-70637

LightFTP through 2.4 contains multiple data race vulnerabilities in ftpserv.c that allow anonymous attackers to cause undefined behavior by issuing LIST followed by ABOR commands without authentication. The control thread closes datasocket and filefd descriptors while worker threads concurrently...

CVE-2026-70637 LightFTP 2.4 Data Race Condition via ABOR Command in ftpserv.c

LightFTP through 2.4 contains multiple data race vulnerabilities in ftpserv.c that allow anonymous attackers to cause undefined behavior by issuing LIST followed by ABOR commands without authentication. The control thread closes datasocket and filefd descriptors while worker threads concurrently...

CVE-2026-70637

LightFTP through 2.4 contains multiple data race vulnerabilities in ftpserv.c that allow anonymous attackers to cause undefined behavior by issuing LIST followed by ABOR commands without authentication. The control thread closes datasocket and filefd descriptors while worker threads concurrently...

CVE-2026-70637 LightFTP 2.4 Data Race Condition via ABOR Command in ftpserv.c

LightFTP through 2.4 contains multiple data race vulnerabilities in ftpserv.c that allow anonymous attackers to cause undefined behavior by issuing LIST followed by ABOR commands without authentication. The control thread closes datasocket and filefd descriptors while worker threads concurrently...

CVE-2026-70637

LightFTP 2.4 contains data race vulnerabilities in ftpserv.c allowing anonymous attackers to trigger undefined behavior by issuing LIST followed by ABOR without authentication. The control thread may close data_socket and file_fd descriptors while worker threads concurrently access the same field...

CVE-2026-70637 LightFTP 2.4 Data Race Condition via ABOR Command in ftpserv.c

LightFTP through 2.4 contains multiple data race vulnerabilities in ftpserv.c that allow anonymous attackers to cause undefined behavior by issuing LIST followed by ABOR commands without authentication. The control thread closes datasocket and filefd descriptors while worker threads concurrently...

CVE-2026-70637: Missing Synchronization

LightFTP through 2.4 contains multiple data race vulnerabilities in ftpserv.c that allow anonymous attackers to cause undefined behavior by issuing LIST followed by ABOR commands without authentication. The control thread closes datasocket and filefd descriptors while worker threads concurrently...

PT-2026-68607

Name of the Vulnerable Software and Affected Versions LightFTP versions prior to 2.5 Description Multiple data race conditions exist in the ftpserv.c file. An unauthenticated anonymous attacker can trigger undefined behavior by sending a LIST command followed by an ABOR command. This occurs becau...

CVE-2026-67607

creationtimestamp| type| source ---|---|--- 2026-08-05 12:15:28+00:00| seen| https://www.acn.gov.it/portale/w/disponibile-poc-per-lo-sfruttamento-della-cve-2026-67607-relativa-al-servizio-lightftp 2026-08-06 01:00:33+00:00| seen|...

LightFTP Server 2.3.1 Race Condition

Summary Small x86-32/x64 FTP Server. Description LightFTP 2.3.1 contains a residual race condition an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c. The control thread reads and acts on shared per-connection state, including the worker thread id it then passes...

CVE-2026-67607

LightFTP 2.3.1 contains a residual race condition vulnerability an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state...

CVE-2026-67607 LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup

LightFTP 2.3.1 contains a residual race condition vulnerability an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state...

EUVD-2026-51558

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 workerthreadcleanup and...

CVE-2026-67607

LightFTP 2.3.1 contains a residual race condition vulnerability an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state...

CVE-2026-67607

LightFTP 2.3.1 is affected by a race-condition DoS vulnerability where a fresh FTP connection reuses context during an in-progress ABRT cleanup, exposing an unprotected re-check of WorkerThreadId between worker_thread_cleanup() and pthread_join() outside MTLock. This can cause pthread_join() to o...

CVE-2026-67607 LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup

LightFTP 2.3.1 contains a residual race condition vulnerability an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state...

CVE-2026-67607 LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup

LightFTP 2.3.1 contains a residual race condition vulnerability an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state...

CVE-2026-67607: Time-of-check Time-of-use (TOCTOU) Race Condition

LightFTP 2.3.1 contains a residual race condition vulnerability an incomplete fix for CVE-2024-11144 in the workerthreadcleanup function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state...