Attacker Value
Unknown
0
CVE-2021-26412
0
CVE ID
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CVE-2021-26412
(Last updated December 30, 2023) ▾
MITRE ATT&CK
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Collection
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Command and Control
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Credential Access
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Defense Evasion
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Discovery
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Execution
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Exfiltration
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Impact
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Initial Access
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Lateral Movement
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Persistence
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Privilege Escalation
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Description
Microsoft Exchange Server Remote Code Execution Vulnerability
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
9.1 Critical
Impact Score:
6
Exploitability Score:
2.3
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Microsoft Exchange Server 2013 Cumulative Update 23 publication
Microsoft Exchange Server 2019 Cumulative Update 7 publication
Microsoft Exchange Server 2016 Cumulative Update 18 publication
Microsoft Exchange Server 2016 Cumulative Update 19 publication
Microsoft Exchange Server 2019 Cumulative Update 8 publication
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- microsoft
Products
- exchange server 2013,
- exchange server 2016,
- exchange server 2019
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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