CVE-1999-0993

HIGH · CVSS 7.5 EPSS 6.94%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 1999-12-13 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Microsoft, Exchange.

CVE

CVE-1999-0993

Severity

HIGH

CVSS

7.5

EPSS

6.94%

Microsoft Exchange

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