CVE-1999-0993

High CVSS 7.5

Published 1999-12-13 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-1999-0993, 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

Modifications to ACLs (Access Control Lists) in Microsoft Exchange 5.5 do not take effect until the directory store cache is refreshed.

Sources

NVD record for CVE-1999-0993

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