Microsoft Exchange Server 2016 Cumulative Update 18 vulnerabilities

18 vulnerabilities

Known vulnerabilities in Microsoft Exchange Server 2016 Cumulative Update 18, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5.8CVE-2021-1730microsoftexchange_server+2
EPSS score
1.82%
<p>A spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user.</p> <p>This update addresses this vulnerability.</p> <p>To prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.</p>
7.8CVE-2021-26857microsoftexchange_server+26KEVRansomware
EPSS score
95.76%
Microsoft Exchange Server Remote Code Execution Vulnerability
9.1CVE-2021-26412microsoftexchange_server+5
EPSS score
33.76%
Microsoft Exchange Server Remote Code Execution Vulnerability
9.1CVE-2021-26855microsoftexchange_server+24KEVRansomware
EPSS score
100.00%
Microsoft Exchange Server Remote Code Execution Vulnerability
7.8CVE-2021-26858microsoftexchange_server+24KEVRansomware
EPSS score
93.65%
Microsoft Exchange Server Remote Code Execution Vulnerability
6.6CVE-2021-26854microsoftexchange_server+5
EPSS score
24.74%
Microsoft Exchange Server Remote Code Execution Vulnerability
9.1CVE-2021-27078microsoftexchange_server+5
EPSS score
21.59%
Microsoft Exchange Server Remote Code Execution Vulnerability
7.8CVE-2021-27065microsoftexchange_server+25KEVRansomware
EPSS score
99.88%
Microsoft Exchange Server Remote Code Execution Vulnerability
6.5CVE-2021-24085microsoftexchange_server+4
EPSS score
4.63%
Microsoft Exchange Server Spoofing Vulnerability
7.1CVE-2020-16969microsoftexchange_server+5
EPSS score
2.73%
<p>An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages. An attacker who successfully exploited the vulnerability could use this to gain further information from a user.</p> <p>To exploit the vulnerability, an attacker could include specially crafted OWA messages that could be loaded, without warning or filtering, from the attacker-controlled URL. This callback vector provides an information disclosure tactic used in web beacons and other types of tracking systems.</p> <p>The security update corrects the way that Exchange handles these token validations.</p>
8.4CVE-2020-17141microsoftexchange_server+4
EPSS score
6.63%
Microsoft Exchange Remote Code Execution Vulnerability
9.1CVE-2020-17132microsoftexchange_server+5
EPSS score
89.90%
Microsoft Exchange Remote Code Execution Vulnerability
9CVE-2020-17084microsoftexchange_server+5
EPSS score
3.85%
Microsoft Exchange Server Remote Code Execution Vulnerability
6.2CVE-2020-17085microsoftexchange_server+5
EPSS score
3.63%
Microsoft Exchange Server Denial of Service Vulnerability
9.1CVE-2020-17142microsoftexchange_server+5
EPSS score
3.37%
Microsoft Exchange Remote Code Execution Vulnerability
9CVE-2020-17117microsoftexchange_server+5
EPSS score
48.87%
Microsoft Exchange Remote Code Execution Vulnerability
8.8CVE-2020-17143microsoftexchange_server+5
EPSS score
70.63%
Microsoft Exchange Server Information Disclosure Vulnerability
5.5CVE-2020-17083microsoftexchange_server+5
EPSS score
11.98%
Microsoft Exchange Server Remote Code Execution Vulnerability