Microsoft Exchange Server 2016 Cumulative Update 23 vulnerabilities
13 known vulnerabilities in Microsoft Exchange Server 2016 Cumulative Update 23 from Microsoft. 12 are rated high or critical, and 6 have been exploited in real attacks. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.
Latest first
- 9.3 Critical severity
Microsoft Exchange Server 2016 Cumulative…: Improper Neutralization of Input During Web Page Generation
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- 9.3 Critical severity
Microsoft Exchange Server 2016 Cumulative…: Improper Neutralization of Input During Web Page Generation
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- 8.8 High severity
Microsoft Exchange Server 2016 Cumulative…: Improper Control of Resource Identifiers
Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
- 9.6 Critical severity
Microsoft Exchange Server 2016 Cumulative…: Improper Neutralization of Input During Web Page Generation
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- 8.1 High severity
Microsoft Exchange Server 2016 Cumulative…: Improper Control of Generation of Code
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
- 6.1 Medium severity
Microsoft Exchange Server Cross-Site Scripting Exploited
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- 7.5 High severity
Microsoft Exchange Server 2016 Cumulative…: Exposure of Sensitive Information to an Unauthorized Actor
Exposure of sensitive information to an unauthorized actor in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
- 8.0 High severity
Microsoft Exchange Server 2016 Cumulative…: Improper Authentication
On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these changes in the general interest of improving the security of hybrid Exchange deployments. Following furt
- 9.8 Critical severity
Microsoft Exchange Server Privilege Escalation Exploited
Microsoft Exchange Server Elevation of Privilege Vulnerability
- 8.8 High severity
Microsoft Exchange Server Deserialization of Untrusted Data Exploited
Microsoft Exchange Server Remote Code Execution Vulnerability
- 9.8 Critical severity
Microsoft Exchange Server Privilege Escalation Exploited
Microsoft Exchange Server Elevation of Privilege Vulnerability
- 8.0 High severity
Microsoft Exchange Server Remote Code Execution Exploited
Microsoft Exchange Server Remote Code Execution Vulnerability
- 8.8 High severity
Microsoft Exchange Server Server-Side Request Forgery Exploited
Microsoft Exchange Server Elevation of Privilege Vulnerability