CVE-2026-45583

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS 7.5 HIGHEPSS 0.5%CWE-94

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

09 jun 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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

Productos afectados

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

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45583