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7.5Alta

CVE-2026-87696Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Microsoft Exchange Server 2016 Cumulative Update 23; Microsoft Microsoft Exchange Server 2019 Cumulative Update 14; Microsoft Microsoft Exchange Serv… Publicada: (hace 23 días)

Descripción

Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Debilidad (CWE): CWE-347

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
microsoft exchange server 2016
microsoft exchange server 2016 15.01.0.0 – < 15.01.2507.077
microsoft exchange server 2019 15.02.0.0 – < 15.02.1748.055
microsoft exchange server se 15.02.0.0 – < 15.02.2562.056
microsoft exchange server subscription edition < 15.02.2562.056
Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 15.01.0.0 – < 15.01.2507.077
Microsoft Microsoft Exchange Server 2019 Cumulative Update 14 15.02.0.0 – < 15.02.1544.050
Microsoft Microsoft Exchange Server 2019 Cumulative Update 15 15.02.0.0 – < 15.02.1748.055
Microsoft Microsoft Exchange Server Subscription Edition RTM 15.02.0.0 – < 15.02.2562.056

Referencias y parches

Coincidencias CPE (NVD) (4)
  • cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_14:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_15:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:exchange_server_subscription_edition:*:*:*:*:*:*:*:* < 15.02.2562.056

CVE recientes del mismo producto — Microsoft Exchange Server

9.3Crítica
CVE-2026-70279

Microsoft Exchange Server Spoofing Vulnerability

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

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.

1.3%EPSS
8.1Alta
CVE-2026-70571

Microsoft Exchange Server Remote Code Execution Vulnerability

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

Stack-based buffer overflow in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

1.4%EPSS
8.8Alta
CVE-2026-77910

Microsoft Exchange Server Elevation of Privilege Vulnerability

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

Incorrect authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

7.8Alta
CVE-2026-87692

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Microsoft Exchange Server 2016 Cumulative Update 23; Microsoft Microsoft Exchange Server 2019 Cumulative Update 14; Microsoft Microsoft Exchange Server Subscription Edition RTM

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

2.3%EPSS
7.8Alta
CVE-2026-87695

Microsoft Exchange Server Elevation of Privilege Vulnerability

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

Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

8.8Alta
CVE-2026-96940

Microsoft Exchange Server Elevation of Privilege Vulnerability

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

Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

2.7%EPSS