8.2
CVE-2026-70637
- EPSS 0.23%
- Veröffentlicht 06.08.2026 14:15:09
- Zuletzt bearbeitet 06.08.2026 22:18:28
- CVE-Watchlists
- Unerledigt
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 data_socket and file_fd descriptors while worker threads concurrently operate on the same fields in worker_thread_cleanup, allowing stale file descriptors to be reassigned by the OS and subsequently used by worker threads on unrelated resources, resulting in potential denial of service.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerhfiref0x
≫
Produkt
LightFTP
Default Statusaffected
Version <=
2.4
Version
0
Status
affected
Version <=
d28c5e08aa4bd128737d35cc6ee0f9630a910ed5
Version
0
Status
affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. 
Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.23% | 0.135 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| disclosure@vulncheck.com | 8.2 | 0 | 0 |
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
|
| disclosure@vulncheck.com | 5.9 | 2.2 | 3.6 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-820 Missing Synchronization
The product utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource.
https://github.com/hfiref0x/LightFTP/issues/75
https://www.vulncheck.com/advisories/lightftp-data-race-condition-via-abor-command-in-ftpserv-c