Product by Microsoft
Microsoft Exchange Server 2013 Cumulative Update 23
51 known vulnerabilities in Microsoft Exchange Server 2013 Cumulative Update 23 (Microsoft), 13 of them actively exploited (CISA KEV).
Key figures
51
Vulnerabilities
13
Actively exploited (KEV)
11
Used by ransomware
24
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.
| Critical | CVE-2021-34473 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 5 other products | 9.1 | |
| Critical | CVE-2021-26855 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 24 other products | 9.1 | |
| Critical | CVE-2022-41040 | Microsoft Exchange Server Elevation of Privilege Vulnerability In CISA KEVRansomwarealso in 5 other products | 8.8 | |
| Critical | CVE-2021-34523 | Microsoft Exchange Server Elevation of Privilege Vulnerability In CISA KEVRansomwarealso in 5 other products | 9.0 | |
| Critical | CVE-2022-41080 | Microsoft Exchange Server Elevation of Privilege Vulnerability In CISA KEVRansomwarealso in 5 other products | 8.8 | |
| Critical | CVE-2023-21529 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 4 other products | 8.8 | |
| Critical | CVE-2022-41082 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 5 other products | 8.0 | |
| Critical | CVE-2021-27065 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 24 other products | 7.8 | |
| Critical | CVE-2021-26857 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 24 other products | 7.8 | |
| Critical | CVE-2021-26858 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEVRansomwarealso in 24 other products | 7.8 | |
| Critical | CVE-2021-31207 | Microsoft Exchange Server Security Feature Bypass Vulnerability In CISA KEVRansomwarealso in 5 other products | 6.6 | |
| Critical | CVE-2021-33766 | Microsoft Exchange Server Information Disclosure Vulnerability In CISA KEValso in 5 other products | 7.3 | |
| Critical | CVE-2021-31196 | Microsoft Exchange Server Remote Code Execution Vulnerability In CISA KEValso in 5 other products | 7.2 | |
| Critical | CVE-2021-28480 | Microsoft Exchange Server Remote Code Execution Vulnerability | 9.8 | |
| Critical | CVE-2021-28481 | Microsoft Exchange Server Remote Code Execution Vulnerability | 9.8 | |
| High | CVE-2023-21707 | Microsoft Exchange Server Remote Code Execution Vulnerability | 8.8 | |
| Critical | CVE-2020-17132 | Microsoft Exchange Remote Code Execution Vulnerability | 9.1 | |
| High | CVE-2021-28482 | Microsoft Exchange Server Remote Code Execution Vulnerability | 8.8 | |
| High | CVE-2020-17143 | Microsoft Exchange Server Information Disclosure Vulnerability | 8.8 | |
| Critical | CVE-2021-26412 | Microsoft Exchange Server Remote Code Execution Vulnerability | 9.1 | |
| High | CVE-2022-23277 | Microsoft Exchange Server Remote Code Execution Vulnerability | 8.8 | |
| Critical | CVE-2021-27078 | Microsoft Exchange Server Remote Code Execution Vulnerability | 9.1 | |
| Medium | CVE-2021-41349 | Microsoft Exchange Server Spoofing Vulnerability | 6.5 | |
| High | CVE-2021-31206 | Microsoft Exchange Server Remote Code Execution Vulnerability | 7.6 | |
| High | CVE-2023-21706 | Microsoft Exchange Server Remote Code Execution Vulnerability | 8.8 |