CVE-2026-67193: Xlight FTP Server < 3.9.5 Information Disclosure via USER Command
Xlight · Xlight FTP Server
Fixed in 3.9.5 · Affected: Xlight FTP Server before 3.9.5 · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
Higher than 35% of scored CVEs
DescriptionNVD
Xlight FTP Server before 3.9.5 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the server's current GetTickCount() value by sending a USER command with a username ending in the :adm suffix. Attackers can trigger the admin protocol path within the standard FTP listener pre-authentication to leak timing information from the FTP 331 response without requiring a separate port or configuration change.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Published
- July 2026
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 4 Aug.
- Xlight FTP Server bug CVE-2026-67192 allows remote code executionSecurityOnline · first in our coverage · mentions it in passing
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