Code Injection in Microsoft Exchange Server - CVE-2026-45583
Published: June 9, 2026
Vulnerability identifier: #VU134074
CSH Severity: High
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-45583
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in Microsoft Exchange Server. A remote attacker can execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2026-45583
Install updates from vendor's website.
Microsoft Exchange Server - addressed in versions 15.01.2507.069, 15.02.1544.041, 15.02.1748.046, 15.02.2562.043