CVE-1999-1021

High CVSS 7.2

Published 1992-12-30 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-1021, 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

NFS on SunOS 4.1 through 4.1.2 ignores the high order 16 bits in a 32 bit UID, which allows a local user to gain root access if the lower 16 bits are set to 0, as fixed by the NFS jumbo patch upgrade.

Sources

NVD record for CVE-1999-1021

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