CVE-2021-42321

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
8.8
EPSS Score
96.54%
Published
2021-11-10
Updated
2023-12-28
CISA KEV Added
2021-11-17

CVE-2021-34473

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
10.0
EPSS Score
97.32%
Published
2021-07-14
Updated
2023-12-28
CISA KEV Added
2021-11-03
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
8.0
EPSS Score
23.44%
Published
2021-07-14
Updated
2023-12-28
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
7.8
EPSS Score
1.07%
Published
2021-05-11
Updated
2023-08-02
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
7.2
EPSS Score
1.26%
Published
2021-07-14
Updated
2023-12-28
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
8.8
EPSS Score
92.08%
Published
2021-05-11
Updated
2023-08-02
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
9.0
EPSS Score
0.37%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
9.0
EPSS Score
1.26%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
10.0
EPSS Score
4.06%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
10.0
EPSS Score
4.06%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
9.1
EPSS Score
3.56%
Published
2021-03-03
Updated
2023-12-29

CVE-2021-27065

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
7.8
EPSS Score
96.51%
Published
2021-03-03
Updated
2023-12-29
CISA KEV Added
2021-11-03

CVE-2021-26858

Known exploited
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
7.8
EPSS Score
56.85%
Published
2021-03-03
Updated
2023-12-29
CISA KEV Added
2021-11-03

CVE-2021-26857

Known exploited
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
7.8
EPSS Score
71.65%
Published
2021-03-03
Updated
2023-12-29
CISA KEV Added
2021-11-03

CVE-2021-26855

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
9.8
EPSS Score
97.50%
Published
2021-03-03
Updated
2024-02-15
CISA KEV Added
2021-11-03
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
7.2
EPSS Score
1.02%
Published
2021-03-03
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
9.6
EPSS Score
0.25%
Published
2021-10-13
Updated
2023-08-01
Microsoft Exchange Server Remote Code Execution Vulnerability
Source: Microsoft Corporation
Max CVSS
9.1
EPSS Score
3.56%
Published
2021-03-03
Updated
2023-12-29
18 vulnerabilities found
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