CVE-1999-0990
Low CVSS 2.1Published 1999-12-05 ยท last changed 2026-06-16
The fix
We hold no Microsoft remediation data for CVE-1999-0990, 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
Error messages generated by gdm with the VerboseAuth setting allows an attacker to identify valid users on a system.
Sources
CVSS vector: AV:L/AC:L/Au:N/C:P/I:N/A:N