Microsoft Exchange Server 2016 Cumulative Update 23 vulnerabilities and CVEs
Known vulnerabilities affecting Microsoft Exchange Server 2016 Cumulative Update 23, with exploit availability attached to each one, so you can tell a flaw someone has written code for from one nobody has.
11 vulnerabilities tracked. 1 with public exploit code.
- 9.6 Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized…
- 8.8 Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
- 8.8 Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
- 8.1 Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized…
- 8.1 Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
- 7.8 Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
- 7.8 Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
- 7.5 Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over…
- 6.5 Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.
- 6.1 Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized…
- 5.0 Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.
What this covers
This feed accumulates forward from the day it started storing records, and a name search that finds nothing here is also looked up against the registers directly — so an older advisory resolves even when it predates the corpus. It is still a reading view, not a substitute for the vendor's own advisory, and absence from this page is not a statement that Microsoft Exchange Server 2016 Cumulative Update 23 is free of vulnerabilities.
Query this from an agent over MCP · Check a lockfile by version
Other products tracked here
Linux Windows Server 2025 (Server Core installation) Windows Server 2025 Windows 11 version 26H1 Windows 11 Version 24H2 Windows 11 Version 25H2 Windows Server 2022 Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 21H2 Windows 10 Version 22H2 Windows 10 Version 1809 Windows 11 Version 23H2 Windows Server 2016 Windows Server 2016 (Server Core installation) Windows 10 Version 1607 Red Hat Enterprise Linux 9 Windows 11 Version 26H2 Red Hat Enterprise Linux 8 Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) Windows Server 2012 Windows Server 2012 (Server Core installation) Red Hat Enterprise Linux 10