CVE-2021-27078

10 documents7 sources
Severity
7.2HIGH
EPSS
23.3%
top 4.05%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Microsoft Microsoft Exchange Server 2013 Cumulative Update 23Microsoft Microsoft Exchange Server 2016 Cumulative Update 18Microsoft Microsoft Exchange Server 2016 Cumulative Update 19+3 more
Timeline
PublishedMar 3
Latest updateOct 21

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 2.3 | Impact: 6.0

Affected Packages6 packages

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

5
OSV
linux-aws vulnerabilities↗2025-10-21
▶
OSV
linux-aws, linux-lts-xenial vulnerabilities↗2025-10-02
▶
OSV
linux, linux-kvm vulnerabilities↗2025-10-02
▶
GHSA
GHSA-5rg7-hgww-7chr: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26855, CVE-2021-2685↗2022-05-24
▶
CVEList
Microsoft Exchange Server Remote Code Execution Vulnerability↗2021-03-02
▶

💥Exploits & PoCs

1
Nuclei
Microsoft Exchange Server SSRF Vulnerability
▶

📋Vendor Advisories

1
Microsoft
Microsoft Exchange Server Remote Code Execution Vulnerability↗2021-03-09
▶
CVE-2021-27078 (HIGH CVSS 7.2) | Microsoft Exchange Server Remote Co | cvebase.io