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CVE-1999-1090

High CVSS 7.5

Published 1991-09-10 ยท last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-1090, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

The default configuration of NCSA Telnet package for Macintosh and PC enables FTP, even though it does not include an "ftp=yes" line, which allows remote attackers to read and modify arbitrary files.

Sources

CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P