CVE-2026-42897
Microsoft Exchange Server Spoofing Vulnerability
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | microsoft |
| Product | microsoft exchange server 2016 cumulative update 23 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | May 14, 2026 |
| Last Updated | May 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for microsoft microsoft exchange server 2016 cumulative update 23
Be the first to know when new high vulnerabilities affecting microsoft microsoft exchange server 2016 cumulative update 23 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:F/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Microsoft Exchange Server 2016 Cumulative Update 23
-
Microsoft / Microsoft Exchange Server 2019 Cumulative Update 14
-
Microsoft / Microsoft Exchange Server 2019 Cumulative Update 15
-
Microsoft / Microsoft Exchange Server Subscription Edition RTM
-