CVE-2018-8581

Microsoft Exchange Server

Published 14 Nov 2018 · updated 17 Jun 2026 · Analyzed

7.4 High · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 3 Mar 2022, with a remediation deadline of 17 Mar 2022 for US federal agencies. It has been used in ransomware campaigns.

Required action: Apply updates per vendor instructions.

Description

An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

References

www.securityfocus.com/bid/105837 · Broken Link, Third Party Advisory, VDB Entry
www.securitytracker.com/id/1042141 · Broken Link, Third Party Advisory, VDB Entry
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8581 · Patch, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8581 · US Government Resource