HIGHCVSS v3.1 7.4Actively exploited · CISA KEV since 2022-03-03Vulnerability

CVE-2018-8581

A privilege escalation vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could attempt to impersonate any other user of the Exchange server.

Properties

Euvd product
Microsoft Exchange Server
Vulnerability name
Microsoft Exchange Server Privilege Escalation Vulnerability
First seen
2025-10-21T23:45:47+00:00
Cvss score
7.4
Epss score
0.27355
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-03-17
Euvd assigner
microsoft
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2022-03-03T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2022-03-03
Score
7.4
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Microsoft
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
In Signal since
initial import (Sep 2026)
Euvd base score
7.4

Related Entities (6)

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CVE-2018-8581 (CVSS v3.1 7.4) — Ninja Signal Threat Intelligence | Ninja Signal