CVE-1999-0399

High CVSS 7.5

Published 1999-01-01 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-0399, 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 DCC server command in the Mirc 5.5 client doesn't filter characters from file names properly, allowing remote attackers to place a malicious file in a different location, possibly allowing the attacker to execute commands.

Sources

NVD record for CVE-1999-0399

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