CVE-2021-27091

—

CVSS 3.1

7.8 high

EPSS

<1%p45

Published

Apr 13, 2021 (Apr 13, 2021)

Modified

Jun 17, 2026

Description

RPC Endpoint Mapper Service Elevation of Privilege Vulnerability

Vendors: microsoft
Products: windows 7, windows server 2008, windows server 2012
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

In the news2 stories

NSA Discovers New Vulnerabilities Affecting Microsoft Exchange Servers

The Hacker NewsApr 15, 00:00 UTC · Apr 15, 2021Vulnerability in the wildCVE-2021-28310 CVE-2021-1732 CVE-2021-28480+6 CVEs

60

Microsoft Patches Four More Critical Exchange Server Bugs

Infosecurity MagazineApr 14, 10:30 UTC · Apr 14, 2021Vulnerability in the wildCVE-2021-28310 CVE-2021-28480 CVE-2021-28481+3 CVEs

60