CVE-2026-45583

HIGH

Microsoft Exchange Server Remote Code Execution Vulnerability

Title source: cna
STIX 2.1

Description

Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Exchange Server Remote Code Execution Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583

Scores

CVSS v3 7.5
EPSS 0.0044
EPSS Percentile 34.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (4)
Microsoft/Microsoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 - 15.01.2507.069
Microsoft/Microsoft Exchange Server 2019 Cumulative Update 14 15.02.0.0 - 15.02.1544.041
Microsoft/Microsoft Exchange Server 2019 Cumulative Update 15 15.02.0.0 - 15.02.1748.046
Microsoft/Microsoft Exchange Server Subscription Edition RTM 15.02.0.0 - 15.02.2562.043
Published Jun 09, 2026
Tracked Since Jun 09, 2026