CVE-2021-42321

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
8.8
EPSS Score
96.51%
Published
2021-11-10
Updated
2023-12-28
CISA KEV Added
2021-11-17
Microsoft Exchange Server Spoofing Vulnerability
Max CVSS
6.5
EPSS Score
0.11%
Published
2021-11-10
Updated
2023-12-28
Microsoft Exchange Server Spoofing Vulnerability
Max CVSS
6.5
EPSS Score
0.32%
Published
2021-10-13
Updated
2023-08-01
Microsoft Exchange Server Spoofing Vulnerability
Max CVSS
6.5
EPSS Score
96.17%
Published
2021-11-10
Updated
2023-12-28
Microsoft Exchange Server Elevation of Privilege Vulnerability
Max CVSS
8.0
EPSS Score
0.04%
Published
2021-10-13
Updated
2023-08-01

CVE-2021-34523

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Elevation of Privilege Vulnerability
Max CVSS
9.8
EPSS Score
72.23%
Published
2021-07-14
Updated
2024-02-13
CISA KEV Added
2021-11-03

CVE-2021-34473

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
10.0
EPSS Score
97.29%
Published
2021-07-14
Updated
2023-12-28
CISA KEV Added
2021-11-03
Microsoft Exchange Server Elevation of Privilege Vulnerability
Max CVSS
8.0
EPSS Score
0.05%
Published
2021-07-14
Updated
2023-12-28
Microsoft Exchange Server Denial of Service Vulnerability
Max CVSS
7.5
EPSS Score
0.12%
Published
2021-10-13
Updated
2023-08-01
Microsoft Exchange Server Elevation of Privilege Vulnerability
Max CVSS
8.0
EPSS Score
0.04%
Published
2021-07-14
Updated
2023-12-28

CVE-2021-33766

Known exploited
Microsoft Exchange Server Information Disclosure Vulnerability
Max CVSS
7.5
EPSS Score
50.27%
Published
2021-07-14
Updated
2023-12-28
CISA KEV Added
2022-01-18
Microsoft Exchange Server Spoofing Vulnerability
Max CVSS
8.1
EPSS Score
7.28%
Published
2021-05-11
Updated
2023-08-02

CVE-2021-31207

Known exploited
Public exploit
Used for ransomware
Microsoft Exchange Server Security Feature Bypass Vulnerability
Max CVSS
7.2
EPSS Score
97.13%
Published
2021-05-11
Updated
2023-08-02
CISA KEV Added
2021-11-03
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
8.0
EPSS Score
26.27%
Published
2021-07-14
Updated
2023-12-28
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
7.8
EPSS Score
1.03%
Published
2021-05-11
Updated
2023-08-02
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
7.2
EPSS Score
1.26%
Published
2021-07-14
Updated
2023-12-28
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
8.8
EPSS Score
92.10%
Published
2021-05-11
Updated
2023-08-02
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
9.0
EPSS Score
0.40%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
9.0
EPSS Score
1.26%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
10.0
EPSS Score
4.45%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
Max CVSS
10.0
EPSS Score
4.45%
Published
2021-04-13
Updated
2023-12-29
Microsoft Exchange Server Remote Code Execution Vulnerability
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
Max CVSS
7.8
EPSS Score
96.36%
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
Max CVSS
7.8
EPSS Score
42.09%
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
Max CVSS
7.8
EPSS Score
68.38%
Published
2021-03-03
Updated
2023-12-29
CISA KEV Added
2021-11-03
31 vulnerabilities found
1 2
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