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8 vulnerabilities found for LightFTP by hfiref0x
CVE-2026-67607 (GCVE-0-2026-67607)
Vulnerability from nvd – Published: 2026-07-31 15:59 – Updated: 2026-08-03 19:59 X_Open Source
VLAI
EPSS
VEX
Title
LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup
Summary
LightFTP 2.3.1 contains a residual race condition vulnerability (an incomplete fix for CVE-2024-11144) in the worker_thread_cleanup() function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state without holding the required mutex lock. Attackers can send a data-transfer command such as LIST followed immediately by ABOR to exploit the missing synchronization on shared context and detached thread id reuse, resulting in daemon destabilization or crash which can lead to a denial of service. The 2.3.1 patch only narrowed the timing window (an extra re-check and reordered cleanup), it never added the missing lock, so the underlying race remains.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/zeroscience/tuktam#real-world-… | technical-description |
| https://www.vulncheck.com/advisories/lightftp-rac… | third-party-advisory |
Date Public
2026-07-30 00:00
Credits
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CVE-2025-65403 (GCVE-0-2025-65403)
Vulnerability from nvd – Published: 2025-12-01 00:00 – Updated: 2025-12-01 19:31
VLAI
EPSS
VEX
Summary
A buffer overflow in the g_cfg.MaxUsers component of LightFTP v2.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
2 references
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CVE-2023-24042 (GCVE-0-2023-24042)
Vulnerability from nvd – Published: 2023-01-21 00:00 – Updated: 2025-04-02 15:53
VLAI
EPSS
VEX
Summary
A race condition in LightFTP through 2.2 allows an attacker to achieve path traversal via a malformed FTP request. A handler thread can use an overwritten context->FileName.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
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CVE-2017-1000218 (GCVE-0-2017-1000218)
Vulnerability from nvd – Published: 2017-11-17 00:00 – Updated: 2024-09-16 17:15
VLAI
EPSS
VEX
Summary
LightFTP version 1.1 is vulnerable to a buffer overflow in the "writelogentry" function resulting a denial of services or a remote code execution.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/hfiref0x/LightFTP/issues/5 | x_refsource_CONFIRM |
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CVE-2026-67607 (GCVE-0-2026-67607)
Vulnerability from cvelistv5 – Published: 2026-07-31 15:59 – Updated: 2026-08-03 19:59 X_Open Source
VLAI
EPSS
VEX
Title
LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup
Summary
LightFTP 2.3.1 contains a residual race condition vulnerability (an incomplete fix for CVE-2024-11144) in the worker_thread_cleanup() function of ftpserv.c that allows remote unauthenticated attackers to destabilize or crash the daemon by triggering unsynchronized access to shared per-connection state without holding the required mutex lock. Attackers can send a data-transfer command such as LIST followed immediately by ABOR to exploit the missing synchronization on shared context and detached thread id reuse, resulting in daemon destabilization or crash which can lead to a denial of service. The 2.3.1 patch only narrowed the timing window (an extra re-check and reordered cleanup), it never added the missing lock, so the underlying race remains.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/zeroscience/tuktam#real-world-… | technical-description |
| https://www.vulncheck.com/advisories/lightftp-rac… | third-party-advisory |
Date Public
2026-07-30 00:00
Credits
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CVE-2025-65403 (GCVE-0-2025-65403)
Vulnerability from cvelistv5 – Published: 2025-12-01 00:00 – Updated: 2025-12-01 19:31
VLAI
EPSS
VEX
Summary
A buffer overflow in the g_cfg.MaxUsers component of LightFTP v2.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
2 references
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CVE-2023-24042 (GCVE-0-2023-24042)
Vulnerability from cvelistv5 – Published: 2023-01-21 00:00 – Updated: 2025-04-02 15:53
VLAI
EPSS
VEX
Summary
A race condition in LightFTP through 2.2 allows an attacker to achieve path traversal via a malformed FTP request. A handler thread can use an overwritten context->FileName.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
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CVE-2017-1000218 (GCVE-0-2017-1000218)
Vulnerability from cvelistv5 – Published: 2017-11-17 00:00 – Updated: 2024-09-16 17:15
VLAI
EPSS
VEX
Summary
LightFTP version 1.1 is vulnerable to a buffer overflow in the "writelogentry" function resulting a denial of services or a remote code execution.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/hfiref0x/LightFTP/issues/5 | x_refsource_CONFIRM |
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