Attacker Value
Unknown
(1 user assessed)
Exploitability
Unknown
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Adjacent_network
1

CVE-2021-31206

Disclosure Date: July 14, 2021
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-31196, CVE-2021-34473.

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1
Technical Analysis

This remote code execution (RCE) vulnerability affects Microsoft Exchange Server 2013/ CU23/2016 CU20/2016 CU21/2019 CU10.
And according to FireEye exploit code is available.
I will share more information once MSFT releases more details

CVSS V3 Severity and Metrics
Base Score:
8.0 High
Impact Score:
5.9
Exploitability Score:
2.1
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Adjacent_network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • Microsoft

Products

  • Microsoft Exchange Server 2019 Cumulative Update 9,
  • Microsoft Exchange Server 2016 Cumulative Update 20,
  • Microsoft Exchange Server 2013,
  • Microsoft Exchange Server 2016 Cumulative Update 21,
  • Microsoft Exchange Server 2019 Cumulative Update 10

Additional Info

Technical Analysis