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CVE-2026-45583

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS 7.5 HIGHEPSS 0.5%CWE-94
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
09 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23Microsoft · Microsoft Exchange Server 2019 Cumulative Update 14Microsoft · Microsoft Exchange Server 2019 Cumulative Update 15Microsoft · Microsoft Exchange Server Subscription Edition RTM
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583